23415864 has 16 divisors (see below), whose sum is σ = 58539720. Its totient is φ = 7805280.

The previous prime is 23415859. The next prime is 23415869. The reversal of 23415864 is 46851432.

It is an interprime number because it is at equal distance from previous prime (23415859) and next prime (23415869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23415869) 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 in 3 ways as a sum of consecutive naturals, for example, 487807 + ... + 487854.

Almost surely, 2^23415864 is an apocalyptic number.

23415864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23415864 is an abundant number, since it is smaller than the sum of its proper divisors (35123856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23415864 is a wasteful number, since it uses less digits than its factorization.

23415864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975670 (or 975666 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 23415864 is about 4838.9941103498. The cubic root of 23415864 is about 286.0904729499.

The spelling of 23415864 in words is "twenty-three million, four hundred fifteen thousand, eight hundred sixty-four".