564822 has 12 divisors (see below), whose sum is σ = 1223820. Its totient is φ = 188268.

The previous prime is 564797. The next prime is 564827. The reversal of 564822 is 228465.

564822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564827) by changing a digit.

564822 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15672 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (101985).

2⁵⁶⁴⁸²² is an apocalyptic number.

564822 is an abundant number, since it is smaller than the sum of its proper divisors (658998).

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

564822 is a wasteful number, since it uses less digits than its factorization.

564822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31387 (or 31384 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 564822 is about 751.5464057528. The cubic root of 564822 is about 82.6616115824.

The spelling of 564822 in words is "five hundred sixty-four thousand, eight hundred twenty-two".