12907870 has 16 divisors (see below), whose sum is σ = 23392800. Its totient is φ = 5127904.

The previous prime is 12907847. The next prime is 12907883. The reversal of 12907870 is 7870921.

It is a super-2 number, since 2×12907870² = 333226215873800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 2842 + ... + 5821.

It is an arithmetic number, because the mean of its divisors is an integer number (1462050).

Almost surely, 2^12907870 is an apocalyptic number.

12907870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12907870 is a deficient number, since it is larger than the sum of its proper divisors (10484930).

12907870 is a wasteful number, since it uses less digits than its factorization.

12907870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 12907870 is about 3592.7524267614. The cubic root of 12907870 is about 234.5766938176.

The spelling of 12907870 in words is "twelve million, nine hundred seven thousand, eight hundred seventy".