563399 has 4 divisors (see below), whose sum is σ = 578664. Its totient is φ = 548136.

The previous prime is 563377. The next prime is 563401. The reversal of 563399 is 993365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993365 = 5 ⋅198673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563399 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 (563359) 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, 7577 + ... + 7650.

It is an arithmetic number, because the mean of its divisors is an integer number (144666).

2⁵⁶³³⁹⁹ is an apocalyptic number.

563399 is a deficient number, since it is larger than the sum of its proper divisors (15265).

563399 is a wasteful number, since it uses less digits than its factorization.

563399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264.

The product of its digits is 21870, while the sum is 35.

The square root of 563399 is about 750.5990940575. The cubic root of 563399 is about 82.5921345941.

The spelling of 563399 in words is "five hundred sixty-three thousand, three hundred ninety-nine".