564917822 has 8 divisors (see below), whose sum is σ = 968430576. Its totient is φ = 242107632.

The previous prime is 564917809. The next prime is 564917827. The reversal of 564917822 is 228719465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×564917822² = 638264291226447368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564917827) 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, 20175623 + ... + 20175650.

It is an arithmetic number, because the mean of its divisors is an integer number (121053822).

Almost surely, 2^564917822 is an apocalyptic number.

564917822 is a deficient number, since it is larger than the sum of its proper divisors (403512754).

564917822 is a wasteful number, since it uses less digits than its factorization.

564917822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40351282.

The product of its digits is 241920, while the sum is 44.

The square root of 564917822 is about 23767.9999579266. Note that the first 4 decimals coincide. The cubic root of 564917822 is about 826.6628582970.

The spelling of 564917822 in words is "five hundred sixty-four million, nine hundred seventeen thousand, eight hundred twenty-two".