11239979 has 2 divisors, whose sum is σ = 11239980. Its totient is φ = 11239978.

The previous prime is 11239973. The next prime is 11239993. The reversal of 11239979 is 97993211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11239979 - 2¹² = 11235883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11239973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5619989 + 5619990.

It is an arithmetic number, because the mean of its divisors is an integer number (5619990).

Almost surely, 2^11239979 is an apocalyptic number.

11239979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11239979 is an equidigital number, since it uses as much as digits as its factorization.

11239979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 41.

The square root of 11239979 is about 3352.6077909592. The cubic root of 11239979 is about 224.0036869610.

The spelling of 11239979 in words is "eleven million, two hundred thirty-nine thousand, nine hundred seventy-nine".