23868931 has 2 divisors, whose sum is σ = 23868932. Its totient is φ = 23868930.

The previous prime is 23868919. The next prime is 23869031. The reversal of 23868931 is 13986832.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23868931 is a prime.

It is a super-2 number, since 2×23868931² = 1139451734165522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23868631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11934465 + 11934466.

It is an arithmetic number, because the mean of its divisors is an integer number (11934466).

Almost surely, 2^23868931 is an apocalyptic number.

23868931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23868931 is an equidigital number, since it uses as much as digits as its factorization.

23868931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 23868931 is about 4885.5839978451. The cubic root of 23868931 is about 287.9238602415.

It can be divided in two parts, 238 and 68931, that added together give a square (69169 = 263²).

The spelling of 23868931 in words is "twenty-three million, eight hundred sixty-eight thousand, nine hundred thirty-one".