12857764 has 12 divisors (see below), whose sum is σ = 23050188. Its totient is φ = 6272000.

The previous prime is 12857711. The next prime is 12857771. The reversal of 12857764 is 46775821.

It can be written as a sum of positive squares in 2 ways, for example, as 7795264 + 5062500 = 2792^2 + 2250^2 .

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, 39037 + ... + 39364.

It is an arithmetic number, because the mean of its divisors is an integer number (1920849).

Almost surely, 2^12857764 is an apocalyptic number.

It is an amenable number.

12857764 is a deficient number, since it is larger than the sum of its proper divisors (10192424).

12857764 is a wasteful number, since it uses less digits than its factorization.

12857764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78446 (or 78444 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 12857764 is about 3585.7724411903. The cubic root of 12857764 is about 234.2727722235.

The spelling of 12857764 in words is "twelve million, eight hundred fifty-seven thousand, seven hundred sixty-four".