564383909 has 4 divisors (see below), whose sum is σ = 575032716. Its totient is φ = 553735104.

The previous prime is 564383887. The next prime is 564383933. The reversal of 564383909 is 909383465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280562500 + 283821409 = 16750^2 + 16847^2 .

It is a cyclic number.

It is not a de Polignac number, because 564383909 - 2²⁸ = 295948453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564383509) 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, 5324324 + ... + 5324429.

It is an arithmetic number, because the mean of its divisors is an integer number (143758179).

Almost surely, 2^564383909 is an apocalyptic number.

It is an amenable number.

564383909 is a deficient number, since it is larger than the sum of its proper divisors (10648807).

564383909 is a wasteful number, since it uses less digits than its factorization.

564383909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648806.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 564383909 is about 23756.7655416305. The cubic root of 564383909 is about 826.4023453811.

The spelling of 564383909 in words is "five hundred sixty-four million, three hundred eighty-three thousand, nine hundred nine".