12907928 has 16 divisors (see below), whose sum is σ = 26402760. Its totient is φ = 5867200.

The previous prime is 12907927. The next prime is 12907943. The reversal of 12907928 is 82970921.

12907928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12907928² = 333229210506368, which contains 22 as substring.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12907891 and 12907900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12907927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73253 + ... + 73428.

Almost surely, 2^12907928 is an apocalyptic number.

It is an amenable number.

12907928 is an abundant number, since it is smaller than the sum of its proper divisors (13494832).

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

12907928 is a wasteful number, since it uses less digits than its factorization.

12907928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146698 (or 146694 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12907928 is about 3592.7604985582. The cubic root of 12907928 is about 234.5770451647.

The spelling of 12907928 in words is "twelve million, nine hundred seven thousand, nine hundred twenty-eight".