23664536 has 16 divisors (see below), whose sum is σ = 50709840. Its totient is φ = 10141920.

The previous prime is 23664521. The next prime is 23664581. The reversal of 23664536 is 63546632.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23664496 and 23664505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211235 + ... + 211346.

It is an arithmetic number, because the mean of its divisors is an integer number (3169365).

Almost surely, 2^23664536 is an apocalyptic number.

It is an amenable number.

23664536 is an abundant number, since it is smaller than the sum of its proper divisors (27045304).

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

23664536 is a wasteful number, since it uses less digits than its factorization.

23664536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422594 (or 422590 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 23664536 is about 4864.6208485349. The cubic root of 23664536 is about 287.0996509569.

It can be divided in two parts, 2366 and 4536, that multiplied together give a square (10732176 = 3276²).

The spelling of 23664536 in words is "twenty-three million, six hundred sixty-four thousand, five hundred thirty-six".