12894656 has 28 divisors (see below), whose sum is σ = 25828752. Its totient is φ = 6386688.

The previous prime is 12894643. The next prime is 12894671. The reversal of 12894656 is 65649821.

It is a happy number.

It is a congruent number.

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, 6341 + ... + 8123.

Almost surely, 2^12894656 is an apocalyptic number.

12894656 is a gapful number since it is divisible by the number (16) 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 12894656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12914376).

12894656 is an abundant number, since it is smaller than the sum of its proper divisors (12934096).

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

12894656 is a wasteful number, since it uses less digits than its factorization.

12894656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1898 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 12894656 is about 3590.9129758322. The cubic root of 12894656 is about 234.4966198066.

The spelling of 12894656 in words is "twelve million, eight hundred ninety-four thousand, six hundred fifty-six".