564789 has 8 divisors (see below), whose sum is σ = 777472. Its totient is φ = 364320.

The previous prime is 564779. The next prime is 564793. The reversal of 564789 is 987465.

564789 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 564789 - 2⁸ = 564533 is a prime.

It is a super-2 number, since 2×564789² = 637973229042, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5 + 6³ + 7³ + 4² + 8⁵ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564709) 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, 2944 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (97184).

2⁵⁶⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

564789 is a deficient number, since it is larger than the sum of its proper divisors (212683).

564789 is a wasteful number, since it uses less digits than its factorization.

564789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107.

The product of its digits is 60480, while the sum is 39.

The square root of 564789 is about 751.5244507000. The cubic root of 564789 is about 82.6600017028.

The spelling of 564789 in words is "five hundred sixty-four thousand, seven hundred eighty-nine".