12857628 has 24 divisors (see below), whose sum is σ = 34287232. Its totient is φ = 3673584.

The previous prime is 12857609. The next prime is 12857629. The reversal of 12857628 is 82675821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857629) 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, 76450 + ... + 76617.

Almost surely, 2^12857628 is an apocalyptic number.

It is an amenable number.

12857628 is an abundant number, since it is smaller than the sum of its proper divisors (21429604).

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

12857628 is a wasteful number, since it uses less digits than its factorization.

12857628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153081 (or 153079 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 12857628 is about 3585.7534773043. The cubic root of 12857628 is about 234.2719462321.

The spelling of 12857628 in words is "twelve million, eight hundred fifty-seven thousand, six hundred twenty-eight".