563623 has 2 divisors, whose sum is σ = 563624. Its totient is φ = 563622.

The previous prime is 563599. The next prime is 563657. The reversal of 563623 is 326365.

563623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563623 is a prime.

It is a super-2 number, since 2×563623² = 635341772258, which contains 22 as substring.

563623 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281811 + 281812.

It is an arithmetic number, because the mean of its divisors is an integer number (281812).

2⁵⁶³⁶²³ is an apocalyptic number.

563623 is a deficient number, since it is larger than the sum of its proper divisors (1).

563623 is an equidigital number, since it uses as much as digits as its factorization.

563623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 563623 is about 750.7482933714. The cubic root of 563623 is about 82.6030789910.

Adding to 563623 its reverse (326365), we get a palindrome (889988).

It can be divided in two parts, 56362 and 3, that added together give a palindrome (56365).

The spelling of 563623 in words is "five hundred sixty-three thousand, six hundred twenty-three".