Number
997
997 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 25
- Digital root
- 7
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 998
Primality
997 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- nine hundred ninety-seven
- Ordinal
- 997th
- Roman numeral
- CMXCVII
- Binary
- 1111100101
- Octal
- 1745
- Hexadecimal
- 3E5
Also seen as
Prime neighborhood
Unicode codepoint
ϥ
U+03E5
Lowercase letter (Ll)
UTF-8 encoding: CF A5 (2 bytes).
Hex color
#0003E5
RGB(0, 3, 229)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.229.