Number

877

877 is a prime, odd, a calendar year.

Arithmetic Number Bell Number Chen Prime Cousin Prime Deficient Number Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Sexy Prime Squarefree Year

Historical context — 877 AD

Calendar year

Year 877 (DCCCLXXVII) was a common year starting on Tuesday of the Julian calendar.

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Historical context — 877 BC

Decade

This article concerns the period 879 BC – 870 BC.

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Year facts

Year type: Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year: 365
ISO weeks: 52
Started on: Friday
January 1, 877
Ended on: Friday
December 31, 877
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 870s
870–879
Century: 9th century
801–900
Millennium: 1st millennium
1–1000
Years ago: 1,149
1149 years before 2026.

In other calendars

Hebrew: 4637 / 4638 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 263 / 264 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Fire zodiac:Rooster
Sexagenary cycle position 34 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1420 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 255 / 256 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 869 / 870 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 799 / 798 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 22
Digit product: 392
Digital root: 4
Palindrome: No
Bit width: 10 bits
Reversed: 778
Recamán's sequence: a(777) = 877
Square (n²): 769,129
Cube (n³): 674,526,133
Divisor count: 2
σ(n) — sum of divisors: 878
φ(n) — Euler's totient: 876

Primality

877 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 877

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 877)

1 × 877

First multiples

877 · 1,754 (double) · 2,631 · 3,508 · 4,385 · 5,262 · 6,139 · 7,016 · 7,893 · 8,770

Sums & aliquot sequence

As a sum of two squares: 6² + 29²

As consecutive integers: 438 + 439

Representations

In words: eight hundred seventy-seven
Ordinal: 877th
Roman numeral: DCCCLXXVII
Binary: 1101101101
Octal: 1555
Hexadecimal: 0x36D
Base64: A20=
One's complement: 64,658 (16-bit)

In other bases

ternary (3) 1012111

quaternary (4) 31231

quinary (5) 12002

senary (6) 4021

septenary (7) 2362

nonary (9) 1174

undecimal (11) 728

duodecimal (12) 611

tridecimal (13) 526

tetradecimal (14) 469

pentadecimal (15) 3d7

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ωοζʹ
Mayan (base 20): 𝋢·𝋣·𝋱
Chinese: 八百七十七
Chinese (financial): 捌佰柒拾柒

In other modern scripts

Eastern Arabic ٨٧٧ Devanagari ८७७ Bengali ৮৭৭ Tamil ௮௭௭ Thai ๘๗๗ Tibetan ༨༧༧ Khmer ៨៧៧ Lao ໘໗໗ Burmese ၈၇၇

Digit at this position in famous constants

π — Pi (π): Digit 877 = 3
e — Euler's number (e): Digit 877 = 6
φ — Golden ratio (φ): Digit 877 = 7
√2 — Pythagoras's (√2): Digit 877 = 5
ln 2 — Natural log of 2: Digit 877 = 4
γ — Euler-Mascheroni (γ): Digit 877 = 0

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 863 (gap of 14)
Next prime: 881 (gap of 4)

Pair status: cousin with 881.

Unicode codepoint

Combining Latin Small Letter T

U+036D

Non-spacing mark (Mn)

UTF-8 encoding: CD AD (2 bytes).

Lookup U+036D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00036D

RGB(0, 3, 109)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.109.

Address: 0.0.3.109
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.109

Unspecified address (0.0.0.0/8) — "this network" placeholder.

NANP area code 877

The number 877 is an active NANP area code (North American Numbering Plan).

Primary area: Toll-free
Region: (special)
Country: North America

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.

Look up area code 877 ↗

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number

000000877

Federal Reserve

United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Look up on FedACH (official) ↗ Search Google for routing number 000000877 ↗