23457664 has 16 divisors (see below), whose sum is σ = 46732320. Its totient is φ = 11728768.

The previous prime is 23457659. The next prime is 23457673. The reversal of 23457664 is 46675432.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 91504 + ... + 91759.

It is an arithmetic number, because the mean of its divisors is an integer number (2920770).

Almost surely, 2^23457664 is an apocalyptic number.

It is an amenable number.

23457664 is a deficient number, since it is larger than the sum of its proper divisors (23274656).

23457664 is an equidigital number, since it uses as much as digits as its factorization.

23457664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183277 (or 183265 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 23457664 is about 4843.3112640011. The cubic root of 23457664 is about 286.2606065113.

The spelling of 23457664 in words is "twenty-three million, four hundred fifty-seven thousand, six hundred sixty-four".