12928712 has 16 divisors (see below), whose sum is σ = 24290700. Its totient is φ = 6451200.

The previous prime is 12928711. The next prime is 12928717. The reversal of 12928712 is 21782921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12773476 + 155236 = 3574^2 + 394^2 .

It is not an unprimeable number, because it can be changed into a prime (12928711) 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, 3464 + ... + 6152.

Almost surely, 2^12928712 is an apocalyptic number.

It is an amenable number.

12928712 is a deficient number, since it is larger than the sum of its proper divisors (11361988).

12928712 is a wasteful number, since it uses less digits than its factorization.

12928712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 3292 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 12928712 is about 3595.6518185164. The cubic root of 12928712 is about 234.7028808751.

The spelling of 12928712 in words is "twelve million, nine hundred twenty-eight thousand, seven hundred twelve".