12670979 has 4 divisors (see below), whose sum is σ = 12701640. Its totient is φ = 12640320.

The previous prime is 12670963. The next prime is 12670997. The reversal of 12670979 is 97907621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12670979 - 2⁴ = 12670963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12670919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14702 + ... + 15539.

It is an arithmetic number, because the mean of its divisors is an integer number (3175410).

Almost surely, 2^12670979 is an apocalyptic number.

12670979 is a deficient number, since it is larger than the sum of its proper divisors (30661).

12670979 is an equidigital number, since it uses as much as digits as its factorization.

12670979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30660.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 12670979 is about 3559.6318629881. The cubic root of 12670979 is about 233.1328057197.

The spelling of 12670979 in words is "twelve million, six hundred seventy thousand, nine hundred seventy-nine".