564903 has 12 divisors (see below), whose sum is σ = 851760. Its totient is φ = 360096.

The previous prime is 564899. The next prime is 564917. The reversal of 564903 is 309465.

It is a happy number.

It is not a de Polignac number, because 564903 - 2² = 564899 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1158 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (70980).

2⁵⁶⁴⁹⁰³ is an apocalyptic number.

564903 is a deficient number, since it is larger than the sum of its proper divisors (286857).

564903 is a wasteful number, since it uses less digits than its factorization.

564903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 2755 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 564903 is about 751.6002927088. The cubic root of 564903 is about 82.6655628393.

The spelling of 564903 in words is "five hundred sixty-four thousand, nine hundred three".