11011589 has 4 divisors (see below), whose sum is σ = 11039724. Its totient is φ = 10983456.

The previous prime is 11011579. The next prime is 11011591. The reversal of 11011589 is 98511011.

11011589 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8655364 + 2356225 = 2942^2 + 1535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13472 + ... + 14265.

It is an arithmetic number, because the mean of its divisors is an integer number (2759931).

Almost surely, 2^11011589 is an apocalyptic number.

It is an amenable number.

11011589 is a deficient number, since it is larger than the sum of its proper divisors (28135).

11011589 is an equidigital number, since it uses as much as digits as its factorization.

11011589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28134.

The product of its (nonzero) digits is 360, while the sum is 26.

The square root of 11011589 is about 3318.3714379195. The cubic root of 11011589 is about 222.4760837821.

The spelling of 11011589 in words is "eleven million, eleven thousand, five hundred eighty-nine".