11954979 has 8 divisors (see below), whose sum is σ = 17711120. Its totient is φ = 7969968.

The previous prime is 11954977. The next prime is 11955007. The reversal of 11954979 is 97945911.

It is not a de Polignac number, because 11954979 - 2¹ = 11954977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11954977) 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 in 7 ways as a sum of consecutive naturals, for example, 221362 + ... + 221415.

It is an arithmetic number, because the mean of its divisors is an integer number (2213890).

Almost surely, 2^11954979 is an apocalyptic number.

11954979 is a deficient number, since it is larger than the sum of its proper divisors (5756141).

11954979 is an equidigital number, since it uses as much as digits as its factorization.

11954979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442786 (or 442780 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 11954979 is about 3457.5972871345. The cubic root of 11954979 is about 228.6561775947.

The spelling of 11954979 in words is "eleven million, nine hundred fifty-four thousand, nine hundred seventy-nine".