23164864 has 28 divisors (see below), whose sum is σ = 47969424. Its totient is φ = 11078144.

The previous prime is 23164847. The next prime is 23164891. The reversal of 23164864 is 46846132.

It is a super-2 number, since 2×23164864² = 1073221848276992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6397 + ... + 9340.

Almost surely, 2^23164864 is an apocalyptic number.

It is an amenable number.

23164864 is an abundant number, since it is smaller than the sum of its proper divisors (24804560).

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

23164864 is a wasteful number, since it uses less digits than its factorization.

23164864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15772 (or 15762 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 23164864 is about 4812.9890920300. The cubic root of 23164864 is about 285.0645754976.

The spelling of 23164864 in words is "twenty-three million, one hundred sixty-four thousand, eight hundred sixty-four".