11289979 has 2 divisors, whose sum is σ = 11289980. Its totient is φ = 11289978.

The previous prime is 11289959. The next prime is 11290003. The reversal of 11289979 is 97998211.

It is a happy number.

11289979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (97998211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11289979 - 2⁷ = 11289851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11289959) 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, 5644989 + 5644990.

It is an arithmetic number, because the mean of its divisors is an integer number (5644990).

Almost surely, 2^11289979 is an apocalyptic number.

11289979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11289979 is an equidigital number, since it uses as much as digits as its factorization.

11289979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 46.

The square root of 11289979 is about 3360.0563983362. The cubic root of 11289979 is about 224.3353488384.

The spelling of 11289979 in words is "eleven million, two hundred eighty-nine thousand, nine hundred seventy-nine".