564989465 has 4 divisors (see below), whose sum is σ = 677987364. Its totient is φ = 451991568.

The previous prime is 564989461. The next prime is 564989473.

564989465 is nontrivially palindromic in base 10.

564989465 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 288898009 + 276091456 = 16997^2 + 16616^2 .

It is a cyclic number.

It is not a de Polignac number, because 564989465 - 2² = 564989461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564989465.

It is not an unprimeable number, because it can be changed into a prime (564989461) 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, 56498942 + ... + 56498951.

It is an arithmetic number, because the mean of its divisors is an integer number (169496841).

Almost surely, 2^564989465 is an apocalyptic number.

It is an amenable number.

564989465 is a deficient number, since it is larger than the sum of its proper divisors (112997899).

564989465 is a wasteful number, since it uses less digits than its factorization.

564989465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112997898.

The product of its digits is 9331200, while the sum is 56.

The square root of 564989465 is about 23769.5070415859. The cubic root of 564989465 is about 826.6978026738.

The spelling of 564989465 in words is "five hundred sixty-four million, nine hundred eighty-nine thousand, four hundred sixty-five".