563963 has 4 divisors (see below), whose sum is σ = 583440. Its totient is φ = 544488.

The previous prime is 563947. The next prime is 563971. The reversal of 563963 is 369365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 563963 - 2⁴ = 563947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563933) 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, 9695 + ... + 9752.

It is an arithmetic number, because the mean of its divisors is an integer number (145860).

2⁵⁶³⁹⁶³ is an apocalyptic number.

563963 is a deficient number, since it is larger than the sum of its proper divisors (19477).

563963 is a wasteful number, since it uses less digits than its factorization.

563963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476.

The product of its digits is 14580, while the sum is 32.

The square root of 563963 is about 750.9746999733. The cubic root of 563963 is about 82.6196854824.

The spelling of 563963 in words is "five hundred sixty-three thousand, nine hundred sixty-three".