23816864 has 24 divisors (see below), whose sum is σ = 49648788. Its totient is φ = 11207680.

The previous prime is 23816857. The next prime is 23816873. The reversal of 23816864 is 46861832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18490000 + 5326864 = 4300^2 + 2308^2 .

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, 21347 + ... + 22434.

Almost surely, 2^23816864 is an apocalyptic number.

It is an amenable number.

23816864 is an abundant number, since it is smaller than the sum of its proper divisors (25831924).

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

23816864 is a wasteful number, since it uses less digits than its factorization.

23816864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43808 (or 43800 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 23816864 is about 4880.2524524864. The cubic root of 23816864 is about 287.7143515512.

The spelling of 23816864 in words is "twenty-three million, eight hundred sixteen thousand, eight hundred sixty-four".