564878 has 4 divisors (see below), whose sum is σ = 847320. Its totient is φ = 282438.

The previous prime is 564871. The next prime is 564881. The reversal of 564878 is 878465.

564878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564871) by changing a digit.

564878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141218 + ... + 141221.

It is an arithmetic number, because the mean of its divisors is an integer number (211830).

2⁵⁶⁴⁸⁷⁸ is an apocalyptic number.

564878 is a deficient number, since it is larger than the sum of its proper divisors (282442).

564878 is a wasteful number, since it uses less digits than its factorization.

564878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282441.

The product of its digits is 53760, while the sum is 38.

The square root of 564878 is about 751.5836613445. The cubic root of 564878 is about 82.6643433559.

The spelling of 564878 in words is "five hundred sixty-four thousand, eight hundred seventy-eight".