12906685 has 16 divisors (see below), whose sum is σ = 17177472. Its totient is φ = 9230400.

The previous prime is 12906667. The next prime is 12906697. The reversal of 12906685 is 58660921.

It is not a de Polignac number, because 12906685 - 2¹¹ = 12904637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (1073592).

Almost surely, 2^12906685 is an apocalyptic number.

It is an amenable number.

12906685 is a deficient number, since it is larger than the sum of its proper divisors (4270787).

12906685 is a wasteful number, since it uses less digits than its factorization.

12906685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 12906685 is about 3592.5875076329. The cubic root of 12906685 is about 234.5695152025.

The spelling of 12906685 in words is "twelve million, nine hundred six thousand, six hundred eighty-five".