12968556 has 12 divisors (see below), whose sum is σ = 30259992. Its totient is φ = 4322848.

The previous prime is 12968551. The next prime is 12968563. The reversal of 12968556 is 65586921.

12968556 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 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 (12968551) 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, 540345 + ... + 540368.

It is an arithmetic number, because the mean of its divisors is an integer number (2521666).

Almost surely, 2^12968556 is an apocalyptic number.

It is an amenable number.

12968556 is an abundant number, since it is smaller than the sum of its proper divisors (17291436).

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

12968556 is a wasteful number, since it uses less digits than its factorization.

12968556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080720 (or 1080718 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 12968556 is about 3601.1881372680. The cubic root of 12968556 is about 234.9437378515.

The spelling of 12968556 in words is "twelve million, nine hundred sixty-eight thousand, five hundred fifty-six".