11686979 has 2 divisors, whose sum is σ = 11686980. Its totient is φ = 11686978.

The previous prime is 11686951. The next prime is 11686993. The reversal of 11686979 is 97968611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11686979 - 2⁸ = 11686723 is a prime.

It is not a weakly prime, because it can be changed into another prime (11686949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5843489 + 5843490.

It is an arithmetic number, because the mean of its divisors is an integer number (5843490).

Almost surely, 2^11686979 is an apocalyptic number.

11686979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11686979 is an equidigital number, since it uses as much as digits as its factorization.

11686979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 47.

The square root of 11686979 is about 3418.6223833585. The cubic root of 11686979 is about 226.9346199183.

The spelling of 11686979 in words is "eleven million, six hundred eighty-six thousand, nine hundred seventy-nine".