564681 has 8 divisors (see below), whose sum is σ = 810880. Its totient is φ = 347472.

The previous prime is 564679. The next prime is 564701. The reversal of 564681 is 186465.

564681 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 564681 - 2¹ = 564679 is a prime.

It is a super-2 number, since 2×564681² = 637729263522, which contains 22 as substring.

It is a Duffinian number.

564681 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 564681.

It is not an unprimeable number, because it can be changed into a prime (564671) 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, 7201 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (101360).

2⁵⁶⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

564681 is a deficient number, since it is larger than the sum of its proper divisors (246199).

564681 is a wasteful number, since it uses less digits than its factorization.

564681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14495.

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

The square root of 564681 is about 751.4525933151. The cubic root of 564681 is about 82.6547325673.

The spelling of 564681 in words is "five hundred sixty-four thousand, six hundred eighty-one".