12396979 has 4 divisors (see below), whose sum is σ = 14167984. Its totient is φ = 10625976.

The previous prime is 12396973. The next prime is 12396983. The reversal of 12396979 is 97969321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97969321 = 97 ⋅1009993.

It is a cyclic number.

It is not a de Polignac number, because 12396979 - 2⁵ = 12396947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12396973) 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, 885492 + ... + 885505.

It is an arithmetic number, because the mean of its divisors is an integer number (3541996).

Almost surely, 2^12396979 is an apocalyptic number.

12396979 is a deficient number, since it is larger than the sum of its proper divisors (1771005).

12396979 is an equidigital number, since it uses as much as digits as its factorization.

12396979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771004.

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

The square root of 12396979 is about 3520.9343930269. The cubic root of 12396979 is about 231.4401072229.

The spelling of 12396979 in words is "twelve million, three hundred ninety-six thousand, nine hundred seventy-nine".