23073664 has 16 divisors (see below), whose sum is σ = 45967320. Its totient is φ = 11536768.

The previous prime is 23073649. The next prime is 23073683. The reversal of 23073664 is 46637032.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90004 + ... + 90259.

Almost surely, 2^23073664 is an apocalyptic number.

It is an amenable number.

23073664 is a deficient number, since it is larger than the sum of its proper divisors (22893656).

23073664 is an equidigital number, since it uses as much as digits as its factorization.

23073664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180277 (or 180265 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 23073664 is about 4803.5053866942. The cubic root of 23073664 is about 284.6899840190.

The spelling of 23073664 in words is "twenty-three million, seventy-three thousand, six hundred sixty-four".