426589 has 4 divisors (see below), whose sum is σ = 433024. Its totient is φ = 420156.

The previous prime is 426583. The next prime is 426611. The reversal of 426589 is 985624.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426589 - 2⁹ = 426077 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 (426583) 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, 3117 + ... + 3250.

It is an arithmetic number, because the mean of its divisors is an integer number (108256).

2⁴²⁶⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

426589 is a deficient number, since it is larger than the sum of its proper divisors (6435).

426589 is an equidigital number, since it uses as much as digits as its factorization.

426589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434.

The product of its digits is 17280, while the sum is 34.

The square root of 426589 is about 653.1378108791. The cubic root of 426589 is about 75.2783140876.

The spelling of 426589 in words is "four hundred twenty-six thousand, five hundred eighty-nine".