12979615 has 16 divisors (see below), whose sum is σ = 17062560. Its totient is φ = 9400320.

The previous prime is 12979601. The next prime is 12979643. The reversal of 12979615 is 51697921.

12979615 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12979615 - 2⁵ = 12979583 is a prime.

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, 22207 + ... + 22783.

It is an arithmetic number, because the mean of its divisors is an integer number (1066410).

Almost surely, 2^12979615 is an apocalyptic number.

12979615 is a deficient number, since it is larger than the sum of its proper divisors (4082945).

12979615 is a wasteful number, since it uses less digits than its factorization.

12979615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its digits is 34020, while the sum is 40.

The square root of 12979615 is about 3602.7232755237. The cubic root of 12979615 is about 235.0105020205.

The spelling of 12979615 in words is "twelve million, nine hundred seventy-nine thousand, six hundred fifteen".