12633656 has 16 divisors (see below), whose sum is σ = 27072240. Its totient is φ = 5414400.

The previous prime is 12633653. The next prime is 12633661. The reversal of 12633656 is 65633621.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633653) 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, 112745 + ... + 112856.

It is an arithmetic number, because the mean of its divisors is an integer number (1692015).

Almost surely, 2^12633656 is an apocalyptic number.

It is an amenable number.

12633656 is an abundant number, since it is smaller than the sum of its proper divisors (14438584).

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

12633656 is a wasteful number, since it uses less digits than its factorization.

12633656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225614 (or 225610 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 12633656 is about 3554.3854602449. The cubic root of 12633656 is about 232.9036791725.

The spelling of 12633656 in words is "twelve million, six hundred thirty-three thousand, six hundred fifty-six".