23979664 has 10 divisors (see below), whose sum is σ = 46460630. Its totient is φ = 11989824.

The previous prime is 23979623. The next prime is 23979667. The reversal of 23979664 is 46697932.

It can be written as a sum of positive squares in only one way, i.e., 16646400 + 7333264 = 4080^2 + 2708^2 .

It is not an unprimeable number, because it can be changed into a prime (23979667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749349 + ... + 749380.

It is an arithmetic number, because the mean of its divisors is an integer number (4646063).

Almost surely, 2^23979664 is an apocalyptic number.

It is an amenable number.

23979664 is a deficient number, since it is larger than the sum of its proper divisors (22480966).

23979664 is a wasteful number, since it uses less digits than its factorization.

23979664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498737 (or 1498731 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 23979664 is about 4896.9035114039. The cubic root of 23979664 is about 288.3684199639.

The spelling of 23979664 in words is "twenty-three million, nine hundred seventy-nine thousand, six hundred sixty-four".