22897 has 4 divisors (see below), whose sum is σ = 26176. Its totient is φ = 19620.

The previous prime is 22877. The next prime is 22901. The reversal of 22897 is 79822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22897 - 2⁷ = 22769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (6544).

2²²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

22897 is a deficient number, since it is larger than the sum of its proper divisors (3279).

22897 is an equidigital number, since it uses as much as digits as its factorization.

22897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278.

The product of its digits is 2016, while the sum is 28.

The square root of 22897 is about 151.3175469005. The cubic root of 22897 is about 28.3961543427.

It can be divided in two parts, 228 and 97, that added together give a triangular number (325 = T₂₅).

The spelling of 22897 in words is "twenty-two thousand, eight hundred ninety-seven".