12856704 has 64 divisors (see below), whose sum is σ = 39037440. Its totient is φ = 3672576.

The previous prime is 12856703. The next prime is 12856721. The reversal of 12856704 is 40765821.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297 + ... + 5079.

It is an arithmetic number, because the mean of its divisors is an integer number (609960).

Almost surely, 2^12856704 is an apocalyptic number.

12856704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12856704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19518720).

12856704 is an abundant number, since it is smaller than the sum of its proper divisors (26180736).

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

12856704 is an equidigital number, since it uses as much as digits as its factorization.

12856704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4795 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12856704 is about 3585.6246317762. The cubic root of 12856704 is about 234.2663341948.

The spelling of 12856704 in words is "twelve million, eight hundred fifty-six thousand, seven hundred four".