23631928 has 8 divisors (see below), whose sum is σ = 44309880. Its totient is φ = 11815960.

The previous prime is 23631917. The next prime is 23631931. The reversal of 23631928 is 82913632.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 23631893 and 23631902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476988 + ... + 1477003.

It is an arithmetic number, because the mean of its divisors is an integer number (5538735).

Almost surely, 2^23631928 is an apocalyptic number.

It is an amenable number.

23631928 is a deficient number, since it is larger than the sum of its proper divisors (20677952).

23631928 is a wasteful number, since it uses less digits than its factorization.

23631928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953997 (or 2953993 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 23631928 is about 4861.2681473048. The cubic root of 23631928 is about 286.9677229016.

The spelling of 23631928 in words is "twenty-three million, six hundred thirty-one thousand, nine hundred twenty-eight".