11118789 has 20 divisors (see below), whose sum is σ = 18120960. Its totient is φ = 6738120.

The previous prime is 11118773. The next prime is 11118797. The reversal of 11118789 is 98781111.

It is a happy number.

It is not a de Polignac number, because 11118789 - 2⁴ = 11118773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113789) 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 in 19 ways as a sum of consecutive naturals, for example, 5349 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (906048).

Almost surely, 2^11118789 is an apocalyptic number.

It is an amenable number.

11118789 is a deficient number, since it is larger than the sum of its proper divisors (7002171).

11118789 is a wasteful number, since it uses less digits than its factorization.

11118789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12502 (or 12493 counting only the distinct ones).

The product of its digits is 4032, while the sum is 36.

The square root of 11118789 is about 3334.4848177792. The cubic root of 11118789 is about 223.1957031778.

The spelling of 11118789 in words is "eleven million, one hundred eighteen thousand, seven hundred eighty-nine".