563968489 has 40 divisors (see below), whose sum is σ = 715733928. Its totient is φ = 442552320.

The previous prime is 563968477. The next prime is 563968511. The reversal of 563968489 is 984869365.

It can be written as a sum of positive squares in 4 ways, for example, as 10778089 + 553190400 = 3283^2 + 23520^2 .

It is not a de Polignac number, because 563968489 - 2⁹ = 563967977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (563968459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1673329 + ... + 1673665.

Almost surely, 2^563968489 is an apocalyptic number.

It is an amenable number.

563968489 is a deficient number, since it is larger than the sum of its proper divisors (151765439).

563968489 is an equidigital number, since it uses as much as digits as its factorization.

563968489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 402 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 58.

The square root of 563968489 is about 23748.0207385795. The cubic root of 563968489 is about 826.1995352478.

The spelling of 563968489 in words is "five hundred sixty-three million, nine hundred sixty-eight thousand, four hundred eighty-nine".