564943 has 4 divisors (see below), whose sum is σ = 567640. Its totient is φ = 562248.

The previous prime is 564937. The next prime is 564959. The reversal of 564943 is 349465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564943 is a prime.

It is a Duffinian number.

564943 is a lucky 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005 + ... + 1462.

It is an arithmetic number, because the mean of its divisors is an integer number (141910).

2⁵⁶⁴⁹⁴³ is an apocalyptic number.

564943 is a deficient number, since it is larger than the sum of its proper divisors (2697).

564943 is a wasteful number, since it uses less digits than its factorization.

564943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its digits is 12960, while the sum is 31.

The square root of 564943 is about 751.6269021263. The cubic root of 564943 is about 82.6675139380.

The spelling of 564943 in words is "five hundred sixty-four thousand, nine hundred forty-three".