23513864 has 16 divisors (see below), whose sum is σ = 48096720. Its totient is φ = 10688080.

The previous prime is 23513863. The next prime is 23513879. The reversal of 23513864 is 46831532.

It is a self number, because there is not a number n which added to its sum of digits gives 23513864.

It is not an unprimeable number, because it can be changed into a prime (23513863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133514 + ... + 133689.

It is an arithmetic number, because the mean of its divisors is an integer number (3006045).

Almost surely, 2^23513864 is an apocalyptic number.

It is an amenable number.

23513864 is an abundant number, since it is smaller than the sum of its proper divisors (24582856).

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

23513864 is a wasteful number, since it uses less digits than its factorization.

23513864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267220 (or 267216 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 23513864 is about 4849.1096089901. The cubic root of 23513864 is about 286.4890324303.

The spelling of 23513864 in words is "twenty-three million, five hundred thirteen thousand, eight hundred sixty-four".