23975664 has 20 divisors (see below), whose sum is σ = 61937256. Its totient is φ = 7991872.

The previous prime is 23975659. The next prime is 23975669. The reversal of 23975664 is 46657932.

It is an interprime number because it is at equal distance from previous prime (23975659) and next prime (23975669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23975669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249699 + ... + 249794.

Almost surely, 2^23975664 is an apocalyptic number.

23975664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23975664 is an abundant number, since it is smaller than the sum of its proper divisors (37961592).

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

23975664 is a wasteful number, since it uses less digits than its factorization.

23975664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499504 (or 499498 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 23975664 is about 4896.4950730089. The cubic root of 23975664 is about 288.3523850183.

The spelling of 23975664 in words is "twenty-three million, nine hundred seventy-five thousand, six hundred sixty-four".