12655685 has 16 divisors (see below), whose sum is σ = 17443200. Its totient is φ = 8634816.

The previous prime is 12655651. The next prime is 12655693. The reversal of 12655685 is 58655621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12655685 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7226 + ... + 8804.

It is an arithmetic number, because the mean of its divisors is an integer number (1090200).

Almost surely, 2^12655685 is an apocalyptic number.

It is an amenable number.

12655685 is a deficient number, since it is larger than the sum of its proper divisors (4787515).

12655685 is a wasteful number, since it uses less digits than its factorization.

12655685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its digits is 72000, while the sum is 38.

The square root of 12655685 is about 3557.4829584975. The cubic root of 12655685 is about 233.0389700700.

The spelling of 12655685 in words is "twelve million, six hundred fifty-five thousand, six hundred eighty-five".