564884609 has 4 divisors (see below), whose sum is σ = 565929300. Its totient is φ = 563839920.

The previous prime is 564884603. The next prime is 564884629. The reversal of 564884609 is 906488465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906488465 = 5 ⋅181297693.

It can be written as a sum of positive squares in 2 ways, for example, as 405418225 + 159466384 = 20135^2 + 12628^2 .

It is a cyclic number.

It is not a de Polignac number, because 564884609 - 2¹² = 564880513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564884603) 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 3 ways as a sum of consecutive naturals, for example, 521534 + ... + 522615.

It is an arithmetic number, because the mean of its divisors is an integer number (141482325).

Almost surely, 2^564884609 is an apocalyptic number.

It is an amenable number.

564884609 is a deficient number, since it is larger than the sum of its proper divisors (1044691).

564884609 is a wasteful number, since it uses less digits than its factorization.

564884609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044690.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 564884609 is about 23767.3012561376. The cubic root of 564884609 is about 826.6466574205.

The spelling of 564884609 in words is "five hundred sixty-four million, eight hundred eighty-four thousand, six hundred nine".