12870928 has 30 divisors (see below), whose sum is σ = 29010606. Its totient is φ = 5515776.

The previous prime is 12870919. The next prime is 12870941. The reversal of 12870928 is 82907821.

It can be written as a sum of positive squares in only one way, i.e., 9659664 + 3211264 = 3108^2 + 1792^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7425 + ... + 8992.

Almost surely, 2^12870928 is an apocalyptic number.

It is an amenable number.

12870928 is an abundant number, since it is smaller than the sum of its proper divisors (16139678).

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

12870928 is a wasteful number, since it uses less digits than its factorization.

12870928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16439 (or 16426 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 12870928 is about 3587.6075593632. The cubic root of 12870928 is about 234.3526957856.

The spelling of 12870928 in words is "twelve million, eight hundred seventy thousand, nine hundred twenty-eight".