563638 has 8 divisors (see below), whose sum is σ = 882288. Its totient is φ = 269544.

The previous prime is 563623. The next prime is 563657. The reversal of 563638 is 836365.

563638 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 an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6081 + ... + 6172.

It is an arithmetic number, because the mean of its divisors is an integer number (110286).

2⁵⁶³⁶³⁸ is an apocalyptic number.

563638 is a deficient number, since it is larger than the sum of its proper divisors (318650).

563638 is a wasteful number, since it uses less digits than its factorization.

563638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12278.

The product of its digits is 12960, while the sum is 31.

The square root of 563638 is about 750.7582833376. The cubic root of 563638 is about 82.6038117712.

The spelling of 563638 in words is "five hundred sixty-three thousand, six hundred thirty-eight".