12865764 has 12 divisors (see below), whose sum is σ = 30020144. Its totient is φ = 4288584.

The previous prime is 12865757. The next prime is 12865771. The reversal of 12865764 is 46756821.

It is an interprime number because it is at equal distance from previous prime (12865757) and next prime (12865771).

It is a tau number, because it is divible by the number of its divisors (12).

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, 536062 + ... + 536085.

Almost surely, 2^12865764 is an apocalyptic number.

It is an amenable number.

12865764 is an abundant number, since it is smaller than the sum of its proper divisors (17154380).

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

12865764 is a wasteful number, since it uses less digits than its factorization.

12865764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072154 (or 1072152 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 12865764 is about 3586.8877874837. The cubic root of 12865764 is about 234.3213497111.

The spelling of 12865764 in words is "twelve million, eight hundred sixty-five thousand, seven hundred sixty-four".