12939679 has 8 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 12343800.

The previous prime is 12939671. The next prime is 12939683. The reversal of 12939679 is 97693921.

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

It is a cyclic number.

It is not a de Polignac number, because 12939679 - 2³ = 12939671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739 + ... + 5140.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^12939679 is an apocalyptic number.

12939679 is a deficient number, since it is larger than the sum of its proper divisors (607841).

12939679 is an equidigital number, since it uses as much as digits as its factorization.

12939679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981.

The product of its digits is 183708, while the sum is 46.

The square root of 12939679 is about 3597.1765316704. The cubic root of 12939679 is about 234.7692256904.

The spelling of 12939679 in words is "twelve million, nine hundred thirty-nine thousand, six hundred seventy-nine".