11318889 has 16 divisors (see below), whose sum is σ = 16822080. Its totient is φ = 6727680.

The previous prime is 11318873. The next prime is 11318897. The reversal of 11318889 is 98881311.

It is not a de Polignac number, because 11318889 - 2⁴ = 11318873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11318389) 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 15 ways as a sum of consecutive naturals, for example, 4872 + ... + 6809.

It is an arithmetic number, because the mean of its divisors is an integer number (1051380).

Almost surely, 2^11318889 is an apocalyptic number.

11318889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11318889 is a deficient number, since it is larger than the sum of its proper divisors (5503191).

11318889 is a wasteful number, since it uses less digits than its factorization.

11318889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11720.

The product of its digits is 13824, while the sum is 39.

The square root of 11318889 is about 3364.3556589635. The cubic root of 11318889 is about 224.5266691532.

The spelling of 11318889 in words is "eleven million, three hundred eighteen thousand, eight hundred eighty-nine".