12888686 has 16 divisors (see below), whose sum is σ = 20627136. Its totient is φ = 6018816.

The previous prime is 12888677. The next prime is 12888709. The reversal of 12888686 is 68688821.

12888686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12888686² = 332236453613192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12888686.

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, 3275 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (1289196).

Almost surely, 2^12888686 is an apocalyptic number.

12888686 is a deficient number, since it is larger than the sum of its proper divisors (7738450).

12888686 is a wasteful number, since it uses less digits than its factorization.

12888686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its digits is 294912, while the sum is 47.

The square root of 12888686 is about 3590.0816146712. The cubic root of 12888686 is about 234.4604249435.

The spelling of 12888686 in words is "twelve million, eight hundred eighty-eight thousand, six hundred eighty-six".