563998 has 8 divisors (see below), whose sum is σ = 857808. Its totient is φ = 278064.

The previous prime is 563987. The next prime is 563999. The reversal of 563998 is 899365.

563998 is digitally balanced in base 2, 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 self number, because there is not a number n which added to its sum of digits gives 563998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563999) 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, 1786 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (107226).

2⁵⁶³⁹⁹⁸ is an apocalyptic number.

563998 is a deficient number, since it is larger than the sum of its proper divisors (293810).

563998 is a wasteful number, since it uses less digits than its factorization.

563998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938.

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

The square root of 563998 is about 750.9980026605. The cubic root of 563998 is about 82.6213945952.

The spelling of 563998 in words is "five hundred sixty-three thousand, nine hundred ninety-eight".