23373864 has 24 divisors (see below), whose sum is σ = 63304410. Its totient is φ = 7791264.

The previous prime is 23373859. The next prime is 23373869. The reversal of 23373864 is 46837332.

It is an interprime number because it is at equal distance from previous prime (23373859) and next prime (23373869).

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 3392964 = 4470^2 + 1842^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23373869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162247 + ... + 162390.

Almost surely, 2^23373864 is an apocalyptic number.

23373864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23373864 is an abundant number, since it is smaller than the sum of its proper divisors (39930546).

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

23373864 is a wasteful number, since it uses less digits than its factorization.

23373864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324649 (or 324642 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 23373864 is about 4834.6524177028. The cubic root of 23373864 is about 285.9193213024.

The spelling of 23373864 in words is "twenty-three million, three hundred seventy-three thousand, eight hundred sixty-four".