563894 has 4 divisors (see below), whose sum is σ = 845844. Its totient is φ = 281946.

The previous prime is 563887. The next prime is 563897. The reversal of 563894 is 498365.

563894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563897) by changing a digit.

563894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140972 + ... + 140975.

It is an arithmetic number, because the mean of its divisors is an integer number (211461).

2⁵⁶³⁸⁹⁴ is an apocalyptic number.

563894 is a deficient number, since it is larger than the sum of its proper divisors (281950).

563894 is a wasteful number, since it uses less digits than its factorization.

563894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281949.

The product of its digits is 25920, while the sum is 35.

The square root of 563894 is about 750.9287582720. The cubic root of 563894 is about 82.6163158814.

The spelling of 563894 in words is "five hundred sixty-three thousand, eight hundred ninety-four".