13957589 has 4 divisors (see below), whose sum is σ = 14298060. Its totient is φ = 13617120.

The previous prime is 13957583. The next prime is 13957591. The reversal of 13957589 is 98575931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98575931 = 41 ⋅2404291.

It can be written as a sum of positive squares in 2 ways, for example, as 5880625 + 8076964 = 2425^2 + 2842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13957589 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 (13957583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170174 + ... + 170255.

It is an arithmetic number, because the mean of its divisors is an integer number (3574515).

Almost surely, 2^13957589 is an apocalyptic number.

It is an amenable number.

13957589 is a deficient number, since it is larger than the sum of its proper divisors (340471).

13957589 is an equidigital number, since it uses as much as digits as its factorization.

13957589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340470.

The product of its digits is 340200, while the sum is 47.

The square root of 13957589 is about 3735.9856798441. The cubic root of 13957589 is about 240.7706075260.

The spelling of 13957589 in words is "thirteen million, nine hundred fifty-seven thousand, five hundred eighty-nine".