23656164 has 24 divisors (see below), whose sum is σ = 63083328. Its totient is φ = 6758880.

The previous prime is 23656147. The next prime is 23656169. The reversal of 23656164 is 46165632.

It is a super-2 number, since 2×23656164² = 1119228190389792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23656169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140727 + ... + 140894.

It is an arithmetic number, because the mean of its divisors is an integer number (2628472).

Almost surely, 2^23656164 is an apocalyptic number.

It is an amenable number.

23656164 is an abundant number, since it is smaller than the sum of its proper divisors (39427164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23656164 is a wasteful number, since it uses less digits than its factorization.

23656164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281635 (or 281633 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 23656164 is about 4863.7602736977. The cubic root of 23656164 is about 287.0657904186.

The spelling of 23656164 in words is "twenty-three million, six hundred fifty-six thousand, one hundred sixty-four".