563634 has 24 divisors (see below), whose sum is σ = 1235052. Its totient is φ = 185760.

The previous prime is 563623. The next prime is 563657. The reversal of 563634 is 436365.

It can be written as a sum of positive squares in 2 ways, for example, as 558009 + 5625 = 747^2 + 75^2 .

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 = 563598 and 563607.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3024 + ... + 3204.

2⁵⁶³⁶³⁴ is an apocalyptic number.

563634 is an abundant number, since it is smaller than the sum of its proper divisors (671418).

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

563634 is a wasteful number, since it uses less digits than its factorization.

563634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 563634 is about 750.7556193596. The cubic root of 563634 is about 82.6036163644.

Adding to 563634 its reverse (436365), we get a palindrome (999999).

The spelling of 563634 in words is "five hundred sixty-three thousand, six hundred thirty-four".