622664 has 16 divisors (see below), whose sum is σ = 1334400. Its totient is φ = 266832.

The previous prime is 622663. The next prime is 622669. The reversal of 622664 is 466226.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622664.

It is not an unprimeable number, because it can be changed into a prime (622663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (83400).

2⁶²²⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

622664 is an abundant number, since it is smaller than the sum of its proper divisors (711736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622664 is a wasteful number, since it uses less digits than its factorization.

622664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132 (or 11128 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 622664 is about 789.0906158357. The cubic root of 622664 is about 85.3921442461.

The spelling of 622664 in words is "six hundred twenty-two thousand, six hundred sixty-four".