563943 has 8 divisors (see below), whose sum is σ = 755568. Its totient is φ = 374144.

The previous prime is 563933. The next prime is 563947. The reversal of 563943 is 349365.

It is a happy number.

563943 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 563943 - 2¹⁴ = 547559 is a prime.

563943 is strictly pandigital in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 563943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563947) 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 7 ways as a sum of consecutive naturals, for example, 655 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (94446).

2⁵⁶³⁹⁴³ is an apocalyptic number.

563943 is a deficient number, since it is larger than the sum of its proper divisors (191625).

563943 is a wasteful number, since it uses less digits than its factorization.

563943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its digits is 9720, while the sum is 30.

The square root of 563943 is about 750.9613838274. The cubic root of 563943 is about 82.6187088147.

The spelling of 563943 in words is "five hundred sixty-three thousand, nine hundred forty-three".