563609 has 4 divisors (see below), whose sum is σ = 566016. Its totient is φ = 561204.

The previous prime is 563599. The next prime is 563623. The reversal of 563609 is 906365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906365 = 5 ⋅181273.

It is a cyclic number.

It is not a de Polignac number, because 563609 - 2⁴ = 563593 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (563009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (141504).

2⁵⁶³⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

563609 is a deficient number, since it is larger than the sum of its proper divisors (2407).

563609 is a wasteful number, since it uses less digits than its factorization.

563609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406.

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

The square root of 563609 is about 750.7389692829. The cubic root of 563609 is about 82.6023950512.

The spelling of 563609 in words is "five hundred sixty-three thousand, six hundred nine".