622659 has 16 divisors (see below), whose sum is σ = 911520. Its totient is φ = 376320.

The previous prime is 622639. The next prime is 622663. The reversal of 622659 is 956226.

It is a de Polignac number, because none of the positive numbers 2^k-622659 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622659.

It is not an unprimeable number, because it can be changed into a prime (622619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269 + ... + 1689.

It is an arithmetic number, because the mean of its divisors is an integer number (56970).

2⁶²²⁶⁵⁹ is an apocalyptic number.

622659 is a deficient number, since it is larger than the sum of its proper divisors (288861).

622659 is a wasteful number, since it uses less digits than its factorization.

622659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 6480, while the sum is 30.

The square root of 622659 is about 789.0874476254. The cubic root of 622659 is about 85.3919156788.

The spelling of 622659 in words is "six hundred twenty-two thousand, six hundred fifty-nine".