23164881 has 16 divisors (see below), whose sum is σ = 32184000. Its totient is φ = 14802368.

The previous prime is 23164847. The next prime is 23164891. The reversal of 23164881 is 18846132.

It is a cyclic number.

It is not a de Polignac number, because 23164881 - 2⁷ = 23164753 is a prime.

It is a super-2 number, since 2×23164881² = 1073223423488322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23164891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12070 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (2011500).

Almost surely, 2^23164881 is an apocalyptic number.

It is an amenable number.

23164881 is a deficient number, since it is larger than the sum of its proper divisors (9019119).

23164881 is a wasteful number, since it uses less digits than its factorization.

23164881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968.

The product of its digits is 9216, while the sum is 33.

The square root of 23164881 is about 4812.9908580840. The cubic root of 23164881 is about 285.0646452311.

The spelling of 23164881 in words is "twenty-three million, one hundred sixty-four thousand, eight hundred eighty-one".