564727 has 4 divisors (see below), whose sum is σ = 582976. Its totient is φ = 546480.

The previous prime is 564713. The next prime is 564761. The reversal of 564727 is 727465.

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-564727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 18217 = 564727 / (5 + 6 + 4 + 7 + 2 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9078 + ... + 9139.

It is an arithmetic number, because the mean of its divisors is an integer number (145744).

2⁵⁶⁴⁷²⁷ is an apocalyptic number.

564727 is a deficient number, since it is larger than the sum of its proper divisors (18249).

564727 is a wasteful number, since it uses less digits than its factorization.

564727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18248.

The product of its digits is 11760, while the sum is 31.

The square root of 564727 is about 751.4832000784. The cubic root of 564727 is about 82.6569769109.

The spelling of 564727 in words is "five hundred sixty-four thousand, seven hundred twenty-seven".