23975931 has 16 divisors (see below), whose sum is σ = 36781568. Its totient is φ = 13608000.

The previous prime is 23975921. The next prime is 23975993. The reversal of 23975931 is 13957932.

It is a de Polignac number, because none of the positive numbers 2^k-23975931 is a prime.

It is a super-2 number, since 2×23975931² = 1149690534633522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23975931.

It is not an unprimeable number, because it can be changed into a prime (23975921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610 + ... + 6951.

It is an arithmetic number, because the mean of its divisors is an integer number (2298848).

Almost surely, 2^23975931 is an apocalyptic number.

23975931 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23975931 is a deficient number, since it is larger than the sum of its proper divisors (12805637).

23975931 is a wasteful number, since it uses less digits than its factorization.

23975931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722.

The product of its digits is 51030, while the sum is 39.

The square root of 23975931 is about 4896.5223373329. The cubic root of 23975931 is about 288.3534554064.

The spelling of 23975931 in words is "twenty-three million, nine hundred seventy-five thousand, nine hundred thirty-one".