564173620 has 12 divisors (see below), whose sum is σ = 1184764644. Its totient is φ = 225669440.

The previous prime is 564173609. The next prime is 564173629. The reversal of 564173620 is 26371465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 213510544 + 350663076 = 14612^2 + 18726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564173629) 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, 14104321 + ... + 14104360.

It is an arithmetic number, because the mean of its divisors is an integer number (98730387).

Almost surely, 2^564173620 is an apocalyptic number.

It is an amenable number.

564173620 is an abundant number, since it is smaller than the sum of its proper divisors (620591024).

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

564173620 is a wasteful number, since it uses less digits than its factorization.

564173620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28208690 (or 28208688 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 564173620 is about 23752.3392532188. The cubic root of 564173620 is about 826.2996936764.

The spelling of 564173620 in words is "five hundred sixty-four million, one hundred seventy-three thousand, six hundred twenty".