573663 has 8 divisors (see below), whose sum is σ = 782848. Its totient is φ = 373464.

The previous prime is 573647. The next prime is 573673. The reversal of 573663 is 366375.

573663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 573663 - 2⁴ = 573647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 573663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (97856).

2⁵⁷³⁶⁶³ is an apocalyptic number.

573663 is a deficient number, since it is larger than the sum of its proper divisors (209185).

573663 is a wasteful number, since it uses less digits than its factorization.

573663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493.

The product of its digits is 11340, while the sum is 30.

The square root of 573663 is about 757.4054396425. The cubic root of 573663 is about 83.0906736367.

The spelling of 573663 in words is "five hundred seventy-three thousand, six hundred sixty-three".