12857808 has 40 divisors (see below), whose sum is σ = 34291456. Its totient is φ = 4147200.

The previous prime is 12857791. The next prime is 12857827. The reversal of 12857808 is 80875821.

It is a congruent number.

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, 2833 + ... + 5808.

Almost surely, 2^12857808 is an apocalyptic number.

It is an amenable number.

12857808 is an abundant number, since it is smaller than the sum of its proper divisors (21433648).

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

12857808 is a wasteful number, since it uses less digits than its factorization.

12857808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8683 (or 8677 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 12857808 is about 3585.7785765437. The cubic root of 12857808 is about 234.2730394548.

The spelling of 12857808 in words is "twelve million, eight hundred fifty-seven thousand, eight hundred eight".