12679864 has 8 divisors (see below), whose sum is σ = 23774760. Its totient is φ = 6339928.

The previous prime is 12679847. The next prime is 12679871. The reversal of 12679864 is 46897621.

12679864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12679864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 792484 + ... + 792499.

It is an arithmetic number, because the mean of its divisors is an integer number (2971845).

Almost surely, 2^12679864 is an apocalyptic number.

It is an amenable number.

12679864 is a deficient number, since it is larger than the sum of its proper divisors (11094896).

12679864 is a wasteful number, since it uses less digits than its factorization.

12679864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584989 (or 1584985 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 12679864 is about 3560.8796665993. The cubic root of 12679864 is about 233.1872845675.

The spelling of 12679864 in words is "twelve million, six hundred seventy-nine thousand, eight hundred sixty-four".