622589 has 4 divisors (see below), whose sum is σ = 679200. Its totient is φ = 565980.

The previous prime is 622577. The next prime is 622603. The reversal of 622589 is 985226.

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 622589 - 2⁸ = 622333 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 (622519) 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, 28289 + ... + 28310.

It is an arithmetic number, because the mean of its divisors is an integer number (169800).

2⁶²²⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

622589 is a deficient number, since it is larger than the sum of its proper divisors (56611).

622589 is a wasteful number, since it uses less digits than its factorization.

622589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56610.

The product of its digits is 8640, while the sum is 32.

The square root of 622589 is about 789.0430913455. The cubic root of 622589 is about 85.3887156083.

The spelling of 622589 in words is "six hundred twenty-two thousand, five hundred eighty-nine".