23890864 has 40 divisors (see below), whose sum is σ = 48121920. Its totient is φ = 11481600.

The previous prime is 23890849. The next prime is 23890871. The reversal of 23890864 is 46809832.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51594 + ... + 52054.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^23890864 is an apocalyptic number.

It is an amenable number.

23890864 is an abundant number, since it is smaller than the sum of its proper divisors (24231056).

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

23890864 is a wasteful number, since it uses less digits than its factorization.

23890864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 23890864 is about 4887.8281475518. The cubic root of 23890864 is about 288.0120236750.

The spelling of 23890864 in words is "twenty-three million, eight hundred ninety thousand, eight hundred sixty-four".