12856734 has 36 divisors (see below), whose sum is σ = 30624048. Its totient is φ = 3895320.

The previous prime is 12856729. The next prime is 12856741. The reversal of 12856734 is 43765821.

12856734 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 774 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (850668).

Almost surely, 2^12856734 is an apocalyptic number.

12856734 is an abundant number, since it is smaller than the sum of its proper divisors (17767314).

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

12856734 is a wasteful number, since it uses less digits than its factorization.

12856734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933 (or 5919 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12856734 is about 3585.6288151453. The cubic root of 12856734 is about 234.2665164080.

The spelling of 12856734 in words is "twelve million, eight hundred fifty-six thousand, seven hundred thirty-four".