12715679 has 4 divisors (see below), whose sum is σ = 13059384. Its totient is φ = 12371976.

The previous prime is 12715667. The next prime is 12715691. The reversal of 12715679 is 97651721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12715667) and next prime (12715691).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12715679 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 (12715649) by changing a digit.

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, 171797 + ... + 171870.

It is an arithmetic number, because the mean of its divisors is an integer number (3264846).

Almost surely, 2^12715679 is an apocalyptic number.

12715679 is a deficient number, since it is larger than the sum of its proper divisors (343705).

12715679 is an equidigital number, since it uses as much as digits as its factorization.

12715679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343704.

The product of its digits is 26460, while the sum is 38.

The square root of 12715679 is about 3565.9050744516. The cubic root of 12715679 is about 233.4066284479.

The spelling of 12715679 in words is "twelve million, seven hundred fifteen thousand, six hundred seventy-nine".