11806979 has 4 divisors (see below), whose sum is σ = 11813976. Its totient is φ = 11799984.

The previous prime is 11806967. The next prime is 11806997. The reversal of 11806979 is 97960811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11806979 - 2⁸ = 11806723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11806079) 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, 767 + ... + 4919.

It is an arithmetic number, because the mean of its divisors is an integer number (2953494).

Almost surely, 2^11806979 is an apocalyptic number.

11806979 is a deficient number, since it is larger than the sum of its proper divisors (6997).

11806979 is an equidigital number, since it uses as much as digits as its factorization.

11806979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 11806979 is about 3436.1284900306. The cubic root of 11806979 is about 227.7086858636.

The spelling of 11806979 in words is "eleven million, eight hundred six thousand, nine hundred seventy-nine".