563438764 has 24 divisors (see below), whose sum is σ = 1163230208. Its totient is φ = 233683920.

The previous prime is 563438741. The next prime is 563438779. The reversal of 563438764 is 467834365.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 323694 + ... + 325429.

Almost surely, 2^563438764 is an apocalyptic number.

It is an amenable number.

563438764 is an abundant number, since it is smaller than the sum of its proper divisors (599791444).

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

563438764 is a wasteful number, since it uses less digits than its factorization.

563438764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649165 (or 649163 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The square root of 563438764 is about 23736.8650836626. The cubic root of 563438764 is about 825.9407763177.

The spelling of 563438764 in words is "five hundred sixty-three million, four hundred thirty-eight thousand, seven hundred sixty-four".