12855756 has 12 divisors (see below), whose sum is σ = 29996792. Its totient is φ = 4285248.

The previous prime is 12855751. The next prime is 12855767. The reversal of 12855756 is 65755821.

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

It is not an unprimeable number, because it can be changed into a prime (12855751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535645 + ... + 535668.

Almost surely, 2^12855756 is an apocalyptic number.

It is an amenable number.

12855756 is an abundant number, since it is smaller than the sum of its proper divisors (17141036).

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

12855756 is a wasteful number, since it uses less digits than its factorization.

12855756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071320 (or 1071318 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 12855756 is about 3585.4924347989. The cubic root of 12855756 is about 234.2605761108.

The spelling of 12855756 in words is "twelve million, eight hundred fifty-five thousand, seven hundred fifty-six".