563690 has 8 divisors (see below), whose sum is σ = 1014660. Its totient is φ = 225472.

The previous prime is 563663. The next prime is 563723. The reversal of 563690 is 96365.

563690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 502681 + 61009 = 709^2 + 247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×563690² = 635492832200, which contains 22 as substring.

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

It is a Curzon number.

It is a plaindrome in base 11.

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, 28175 + ... + 28194.

2⁵⁶³⁶⁹⁰ is an apocalyptic number.

563690 is a deficient number, since it is larger than the sum of its proper divisors (450970).

563690 is a wasteful number, since it uses less digits than its factorization.

563690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56376.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 563690 is about 750.7929141914. The cubic root of 563690 is about 82.6063519749.

The spelling of 563690 in words is "five hundred sixty-three thousand, six hundred ninety".