563899 has 4 divisors (see below), whose sum is σ = 644464. Its totient is φ = 483336.

The previous prime is 563897. The next prime is 563929. The reversal of 563899 is 998365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998365 = 5 ⋅199673.

It is not a de Polignac number, because 563899 - 2¹ = 563897 is a prime.

It is a Duffinian number.

563899 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40272 + ... + 40285.

It is an arithmetic number, because the mean of its divisors is an integer number (161116).

2⁵⁶³⁸⁹⁹ is an apocalyptic number.

563899 is a deficient number, since it is larger than the sum of its proper divisors (80565).

563899 is an equidigital number, since it uses as much as digits as its factorization.

563899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80564.

The product of its digits is 58320, while the sum is 40.

The square root of 563899 is about 750.9320874753. The cubic root of 563899 is about 82.6165600646.

The spelling of 563899 in words is "five hundred sixty-three thousand, eight hundred ninety-nine".