12808764 has 18 divisors (see below), whose sum is σ = 32377800. Its totient is φ = 4269576.

The previous prime is 12808751. The next prime is 12808777. The reversal of 12808764 is 46780821.

12808764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12808751) and next prime (12808777).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 355799 = 12808764 / (1 + 2 + 8 + 0 + 8 + 7 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177864 + ... + 177935.

Almost surely, 2^12808764 is an apocalyptic number.

It is an amenable number.

12808764 is an abundant number, since it is smaller than the sum of its proper divisors (19569036).

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

12808764 is a wasteful number, since it uses less digits than its factorization.

12808764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355809 (or 355804 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 12808764 is about 3578.9333606537. The cubic root of 12808764 is about 233.9747945676.

The spelling of 12808764 in words is "twelve million, eight hundred eight thousand, seven hundred sixty-four".