564861 has 8 divisors (see below), whose sum is σ = 821664. Its totient is φ = 342320.

The previous prime is 564827. The next prime is 564871. The reversal of 564861 is 168465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 564861 - 2⁶ = 564797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564871) 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, 8526 + ... + 8591.

It is an arithmetic number, because the mean of its divisors is an integer number (102708).

2⁵⁶⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

564861 is a deficient number, since it is larger than the sum of its proper divisors (256803).

564861 is a wasteful number, since it uses less digits than its factorization.

564861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17131.

The product of its digits is 5760, while the sum is 30.

The square root of 564861 is about 751.5723518065. The cubic root of 564861 is about 82.6635140866.

The spelling of 564861 in words is "five hundred sixty-four thousand, eight hundred sixty-one".