563789 has 4 divisors (see below), whose sum is σ = 583260. Its totient is φ = 544320.

The previous prime is 563777. The next prime is 563809. The reversal of 563789 is 987365.

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 209764 + 354025 = 458^2 + 595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563489) 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, 9692 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (145815).

2⁵⁶³⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

563789 is a deficient number, since it is larger than the sum of its proper divisors (19471).

563789 is a wasteful number, since it uses less digits than its factorization.

563789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19470.

The product of its digits is 45360, while the sum is 38.

The square root of 563789 is about 750.8588415941. The cubic root of 563789 is about 82.6111877003.

The spelling of 563789 in words is "five hundred sixty-three thousand, seven hundred eighty-nine".