12788612 has 12 divisors (see below), whose sum is σ = 22437660. Its totient is φ = 6377856.

The previous prime is 12788609. The next prime is 12788617. The reversal of 12788612 is 21688721.

It can be written as a sum of positive squares in 2 ways, for example, as 4813636 + 7974976 = 2194^2 + 2824^2 .

It is not an unprimeable number, because it can be changed into a prime (12788617) 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, 2273 + ... + 5544.

It is an arithmetic number, because the mean of its divisors is an integer number (1869805).

Almost surely, 2^12788612 is an apocalyptic number.

It is an amenable number.

12788612 is a deficient number, since it is larger than the sum of its proper divisors (9649048).

12788612 is a wasteful number, since it uses less digits than its factorization.

12788612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230 (or 8228 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 12788612 is about 3576.1168884700. The cubic root of 12788612 is about 233.8520261528.

The spelling of 12788612 in words is "twelve million, seven hundred eighty-eight thousand, six hundred twelve".