12686694 has 8 divisors (see below), whose sum is σ = 25373400. Its totient is φ = 4228896.

The previous prime is 12686647. The next prime is 12686747. The reversal of 12686694 is 49668621.

It is a sphenic number, since it is the product of 3 distinct primes.

12686694 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1057219 + ... + 1057230.

It is an arithmetic number, because the mean of its divisors is an integer number (3171675).

Almost surely, 2^12686694 is an apocalyptic number.

12686694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12686694 is a wasteful number, since it uses less digits than its factorization.

12686694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114454.

The product of its digits is 124416, while the sum is 42.

The square root of 12686694 is about 3561.8385701769. The cubic root of 12686694 is about 233.2291457755.

The spelling of 12686694 in words is "twelve million, six hundred eighty-six thousand, six hundred ninety-four".