564403 has 4 divisors (see below), whose sum is σ = 645040. Its totient is φ = 483768.

The previous prime is 564401. The next prime is 564407. The reversal of 564403 is 304465.

564403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564403 - 2¹ = 564401 is a prime.

It is a Duffinian number.

564403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (564401) 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, 40308 + ... + 40321.

It is an arithmetic number, because the mean of its divisors is an integer number (161260).

2⁵⁶⁴⁴⁰³ is an apocalyptic number.

564403 is a deficient number, since it is larger than the sum of its proper divisors (80637).

564403 is an equidigital number, since it uses as much as digits as its factorization.

564403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80636.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 564403 is about 751.2675954678. The cubic root of 564403 is about 82.6411663311.

Adding to 564403 its reverse (304465), we get a palindrome (868868).

The spelling of 564403 in words is "five hundred sixty-four thousand, four hundred three".