564568897 has 8 divisors (see below), whose sum is σ = 587961000. Its totient is φ = 541438464.

The previous prime is 564568889. The next prime is 564568937. The reversal of 564568897 is 798865465.

564568897 = T₂₆₇₈ + T₂₆₇₉ + ... + T₂₈₂₆.

It can be written as a sum of positive squares in 4 ways, for example, as 39425841 + 525143056 = 6279^2 + 22916^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 564568897 - 2³ = 564568889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564568597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61008 + ... + 69649.

It is an arithmetic number, because the mean of its divisors is an integer number (73495125).

Almost surely, 2^564568897 is an apocalyptic number.

It is an amenable number.

564568897 is a deficient number, since it is larger than the sum of its proper divisors (23392103).

564568897 is a wasteful number, since it uses less digits than its factorization.

564568897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130835.

The product of its digits is 14515200, while the sum is 58.

The square root of 564568897 is about 23760.6585977746. The cubic root of 564568897 is about 826.4926254282.

The spelling of 564568897 in words is "five hundred sixty-four million, five hundred sixty-eight thousand, eight hundred ninety-seven".