11856979 has 2 divisors, whose sum is σ = 11856980. Its totient is φ = 11856978.

The previous prime is 11856953. The next prime is 11857003. The reversal of 11856979 is 97965811.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97965811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11856979 - 2⁵ = 11856947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11856919) by changing a digit.

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 as a sum of consecutive naturals, namely, 5928489 + 5928490.

It is an arithmetic number, because the mean of its divisors is an integer number (5928490).

Almost surely, 2^11856979 is an apocalyptic number.

11856979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11856979 is an equidigital number, since it uses as much as digits as its factorization.

11856979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 46.

The square root of 11856979 is about 3443.3964337555. The cubic root of 11856979 is about 228.0296655254.

The spelling of 11856979 in words is "eleven million, eight hundred fifty-six thousand, nine hundred seventy-nine".