563979 has 8 divisors (see below), whose sum is σ = 809872. Its totient is φ = 347040.

The previous prime is 563971. The next prime is 563987. The reversal of 563979 is 979365.

It is an interprime number because it is at equal distance from previous prime (563971) and next prime (563987).

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

It is not a de Polignac number, because 563979 - 2³ = 563971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 14461 = 563979 / (5 + 6 + 3 + 9 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7192 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (101234).

2⁵⁶³⁹⁷⁹ is an apocalyptic number.

563979 is a deficient number, since it is larger than the sum of its proper divisors (245893).

563979 is a wasteful number, since it uses less digits than its factorization.

563979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14477.

The product of its digits is 51030, while the sum is 39.

The square root of 563979 is about 750.9853527200. The cubic root of 563979 is about 82.6204667999.

The spelling of 563979 in words is "five hundred sixty-three thousand, nine hundred seventy-nine".