12857860 has 24 divisors (see below), whose sum is σ = 27631296. Its totient is φ = 5023200.

The previous prime is 12857857. The next prime is 12857881. The reversal of 12857860 is 6875821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6616 + ... + 8335.

It is an arithmetic number, because the mean of its divisors is an integer number (1151304).

Almost surely, 2^12857860 is an apocalyptic number.

12857860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12857860 is an abundant number, since it is smaller than the sum of its proper divisors (14773436).

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

12857860 is a wasteful number, since it uses less digits than its factorization.

12857860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15003 (or 15001 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 12857860 is about 3585.7858274024. The cubic root of 12857860 is about 234.2733552728.

The spelling of 12857860 in words is "twelve million, eight hundred fifty-seven thousand, eight hundred sixty".