23923644 has 12 divisors (see below), whose sum is σ = 55821864. Its totient is φ = 7974544.

The previous prime is 23923639. The next prime is 23923693. The reversal of 23923644 is 44632932.

It is a tau number, because it is divible by the number of its divisors (12).

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, 996807 + ... + 996830.

It is an arithmetic number, because the mean of its divisors is an integer number (4651822).

Almost surely, 2^23923644 is an apocalyptic number.

It is an amenable number.

23923644 is an abundant number, since it is smaller than the sum of its proper divisors (31898220).

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

23923644 is a wasteful number, since it uses less digits than its factorization.

23923644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993644 (or 1993642 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 23923644 is about 4891.1802256715. The cubic root of 23923644 is about 288.1436879449.

The spelling of 23923644 in words is "twenty-three million, nine hundred twenty-three thousand, six hundred forty-four".