13213589 has 8 divisors (see below), whose sum is σ = 13928760. Its totient is φ = 12515776.

The previous prime is 13213579. The next prime is 13213667. The reversal of 13213589 is 98531231.

It can be written as a sum of positive squares in 4 ways, for example, as 4558225 + 8655364 = 2135^2 + 2942^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13213589 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 (13213579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762 + ... + 5835.

It is an arithmetic number, because the mean of its divisors is an integer number (1741095).

Almost surely, 2^13213589 is an apocalyptic number.

It is an amenable number.

13213589 is a deficient number, since it is larger than the sum of its proper divisors (715171).

13213589 is an equidigital number, since it uses as much as digits as its factorization.

13213589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8679.

The product of its digits is 6480, while the sum is 32.

The square root of 13213589 is about 3635.0500684310. The cubic root of 13213589 is about 236.4142215518.

The spelling of 13213589 in words is "thirteen million, two hundred thirteen thousand, five hundred eighty-nine".