12687896 has 32 divisors (see below), whose sum is σ = 26972400. Its totient is φ = 5546880.

The previous prime is 12687889. The next prime is 12687943. The reversal of 12687896 is 69878621.

It is a self number, because there is not a number n which added to its sum of digits gives 12687896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235 + ... + 5186.

Almost surely, 2^12687896 is an apocalyptic number.

It is an amenable number.

12687896 is an abundant number, since it is smaller than the sum of its proper divisors (14284504).

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

12687896 is a wasteful number, since it uses less digits than its factorization.

12687896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459 (or 6455 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 12687896 is about 3562.0072992626. The cubic root of 12687896 is about 233.2365113030.

The spelling of 12687896 in words is "twelve million, six hundred eighty-seven thousand, eight hundred ninety-six".