622564 has 24 divisors (see below), whose sum is σ = 1165248. Its totient is φ = 290400.

The previous prime is 622561. The next prime is 622571. The reversal of 622564 is 465226.

622564 is nontrivially palindromic in base 7.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6114 + ... + 6214.

It is an arithmetic number, because the mean of its divisors is an integer number (48552).

2⁶²²⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

622564 is a deficient number, since it is larger than the sum of its proper divisors (542684).

622564 is a wasteful number, since it uses less digits than its factorization.

622564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 193 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 622564 is about 789.0272492126. The cubic root of 622564 is about 85.3875726678.

The spelling of 622564 in words is "six hundred twenty-two thousand, five hundred sixty-four".