12620656 has 40 divisors (see below), whose sum is σ = 25355024. Its totient is φ = 6082560.

The previous prime is 12620653. The next prime is 12620677. The reversal of 12620656 is 65602621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620653) 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, 65296 + ... + 65488.

Almost surely, 2^12620656 is an apocalyptic number.

12620656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12620656 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12620656 is a wasteful number, since it uses less digits than its factorization.

12620656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12620656 is about 3552.5562627494. The cubic root of 12620656 is about 232.8237659909.

The spelling of 12620656 in words is "twelve million, six hundred twenty thousand, six hundred fifty-six".