13858589 has 4 divisors (see below), whose sum is σ = 13866780. Its totient is φ = 13850400.

The previous prime is 13858583. The next prime is 13858591. The reversal of 13858589 is 98585831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98585831 = 5407 ⋅18233.

It can be written as a sum of positive squares in 2 ways, for example, as 9406489 + 4452100 = 3067^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 13858589 - 2⁴ = 13858573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13858583) 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, 512 + ... + 5289.

It is an arithmetic number, because the mean of its divisors is an integer number (3466695).

Almost surely, 2^13858589 is an apocalyptic number.

It is an amenable number.

13858589 is a deficient number, since it is larger than the sum of its proper divisors (8191).

13858589 is an equidigital number, since it uses as much as digits as its factorization.

13858589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190.

The product of its digits is 345600, while the sum is 47.

The square root of 13858589 is about 3722.7125862736. The cubic root of 13858589 is about 240.2000011093.

The spelling of 13858589 in words is "thirteen million, eight hundred fifty-eight thousand, five hundred eighty-nine".