563889 has 4 divisors (see below), whose sum is σ = 751856. Its totient is φ = 375924.

The previous prime is 563887. The next prime is 563897. The reversal of 563889 is 988365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 563889 - 2¹ = 563887 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 563889.

It is not an unprimeable number, because it can be changed into a prime (563881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93979 + ... + 93984.

It is an arithmetic number, because the mean of its divisors is an integer number (187964).

2⁵⁶³⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

563889 is a deficient number, since it is larger than the sum of its proper divisors (187967).

563889 is a wasteful number, since it uses less digits than its factorization.

563889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187966.

The product of its digits is 51840, while the sum is 39.

The square root of 563889 is about 750.9254290540. The cubic root of 563889 is about 82.6160716968.

The spelling of 563889 in words is "five hundred sixty-three thousand, eight hundred eighty-nine".