23973664 has 96 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 9734400.

The previous prime is 23973641. The next prime is 23973679. The reversal of 23973664 is 46637932.

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 in 15 ways as a sum of consecutive naturals, for example, 773329 + ... + 773359.

It is an arithmetic number, because the mean of its divisors is an integer number (599760).

Almost surely, 2^23973664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23973664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28788480).

23973664 is an abundant number, since it is smaller than the sum of its proper divisors (33603296).

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

23973664 is a wasteful number, since it uses less digits than its factorization.

23973664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 57 counting only the distinct ones).

The product of its digits is 163296, while the sum is 40.

The square root of 23973664 is about 4896.2908410347. The cubic root of 23973664 is about 288.3443668767.

The spelling of 23973664 in words is "twenty-three million, nine hundred seventy-three thousand, six hundred sixty-four".