12756648 has 32 divisors (see below), whose sum is σ = 32004000. Its totient is φ = 4237248.

The previous prime is 12756589. The next prime is 12756659. The reversal of 12756648 is 84665721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7615 + ... + 9137.

It is an arithmetic number, because the mean of its divisors is an integer number (1000125).

Almost surely, 2^12756648 is an apocalyptic number.

It is an amenable number.

12756648 is an abundant number, since it is smaller than the sum of its proper divisors (19247352).

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

12756648 is a wasteful number, since it uses less digits than its factorization.

12756648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1877 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 12756648 is about 3571.6449991566. The cubic root of 12756648 is about 233.6570328156.

The spelling of 12756648 in words is "twelve million, seven hundred fifty-six thousand, six hundred forty-eight".