23956871 has 16 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 22151808.

The previous prime is 23956843. The next prime is 23956879. The reversal of 23956871 is 17865932.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23956871 is a prime.

It is a super-2 number, since 2×23956871² = 1147863336221282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23956879) 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, 88925 + ... + 89193.

It is an arithmetic number, because the mean of its divisors is an integer number (1615950).

Almost surely, 2^23956871 is an apocalyptic number.

23956871 is a deficient number, since it is larger than the sum of its proper divisors (1898329).

23956871 is a wasteful number, since it uses less digits than its factorization.

23956871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its digits is 90720, while the sum is 41.

The square root of 23956871 is about 4894.5756710873. The cubic root of 23956871 is about 288.2770249523.

The spelling of 23956871 in words is "twenty-three million, nine hundred fifty-six thousand, eight hundred seventy-one".