563980864 has 56 divisors (see below), whose sum is σ = 1162979640. Its totient is φ = 271036416.

The previous prime is 563980829. The next prime is 563980867. The reversal of 563980864 is 468089365.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7398400 + 556582464 = 2720^2 + 23592^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563980867) 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, 513564 + ... + 514660.

Almost surely, 2^563980864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563980864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581489820).

563980864 is an abundant number, since it is smaller than the sum of its proper divisors (598998776).

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

563980864 is a wasteful number, since it uses less digits than its factorization.

563980864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 563980864 is about 23748.2812851794. The cubic root of 563980864 is about 826.2055782240.

The spelling of 563980864 in words is "five hundred sixty-three million, nine hundred eighty thousand, eight hundred sixty-four".