23893931 has 2 divisors, whose sum is σ = 23893932. Its totient is φ = 23893930.

The previous prime is 23893927. The next prime is 23893943. The reversal of 23893931 is 13939832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23893931 - 2² = 23893927 is a prime.

It is a super-2 number, since 2×23893931² = 1141839877265522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23893921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11946965 + 11946966.

It is an arithmetic number, because the mean of its divisors is an integer number (11946966).

Almost surely, 2^23893931 is an apocalyptic number.

23893931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23893931 is an equidigital number, since it uses as much as digits as its factorization.

23893931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 23893931 is about 4888.1418760097. The cubic root of 23893931 is about 288.0243477037.

The spelling of 23893931 in words is "twenty-three million, eight hundred ninety-three thousand, nine hundred thirty-one".