12864722 has 16 divisors (see below), whose sum is σ = 20999832. Its totient is φ = 5875200.

The previous prime is 12864707. The next prime is 12864739. The reversal of 12864722 is 22746821.

It can be written as a sum of positive squares in 4 ways, for example, as 3798601 + 9066121 = 1949^2 + 3011^2 .

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, 29 + ... + 5072.

Almost surely, 2^12864722 is an apocalyptic number.

12864722 is a deficient number, since it is larger than the sum of its proper divisors (8135110).

12864722 is a wasteful number, since it uses less digits than its factorization.

12864722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213.

The product of its digits is 10752, while the sum is 32.

The square root of 12864722 is about 3586.7425332744. The cubic root of 12864722 is about 234.3150236341.

The spelling of 12864722 in words is "twelve million, eight hundred sixty-four thousand, seven hundred twenty-two".