563838 has 16 divisors (see below), whose sum is σ = 1230336. Its totient is φ = 170840.

The previous prime is 563837. The next prime is 563851. The reversal of 563838 is 838365.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 563799 and 563808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563831) 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, 4206 + ... + 4337.

It is an arithmetic number, because the mean of its divisors is an integer number (76896).

2⁵⁶³⁸³⁸ is an apocalyptic number.

563838 is an abundant number, since it is smaller than the sum of its proper divisors (666498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563838 is a wasteful number, since it uses less digits than its factorization.

563838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559.

The product of its digits is 17280, while the sum is 33.

The square root of 563838 is about 750.8914701873. The cubic root of 563838 is about 82.6135809307.

The spelling of 563838 in words is "five hundred sixty-three thousand, eight hundred thirty-eight".