11005979 has 8 divisors (see below), whose sum is σ = 11311872. Its totient is φ = 10702440.

The previous prime is 11005957. The next prime is 11006011. The reversal of 11005979 is 97950011.

11005979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11005979 - 2⁸ = 11005723 is a prime.

It is a super-2 number, since 2×11005979² = 242263147496882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11005949) 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, 12962 + ... + 13784.

It is an arithmetic number, because the mean of its divisors is an integer number (1413984).

Almost surely, 2^11005979 is an apocalyptic number.

11005979 is a deficient number, since it is larger than the sum of its proper divisors (305893).

11005979 is an equidigital number, since it uses as much as digits as its factorization.

11005979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 11005979 is about 3317.5260360696. The cubic root of 11005979 is about 222.4382962341.

The spelling of 11005979 in words is "eleven million, five thousand, nine hundred seventy-nine".