12687604 has 12 divisors (see below), whose sum is σ = 22238944. Its totient is φ = 6333624.

The previous prime is 12687601. The next prime is 12687607. The reversal of 12687604 is 40678621.

It is an interprime number because it is at equal distance from previous prime (12687601) and next prime (12687607).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12687604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12687601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727 + ... + 5089.

Almost surely, 2^12687604 is an apocalyptic number.

It is an amenable number.

12687604 is a deficient number, since it is larger than the sum of its proper divisors (9551340).

12687604 is a wasteful number, since it uses less digits than its factorization.

12687604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094 (or 5092 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 12687604 is about 3561.9663109019. The cubic root of 12687604 is about 233.2347220496.

The spelling of 12687604 in words is "twelve million, six hundred eighty-seven thousand, six hundred four".