566784 has 80 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 184320.

The previous prime is 566767. The next prime is 566791. The reversal of 566784 is 487665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13804 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (21483).

2⁵⁶⁶⁷⁸⁴ is an apocalyptic number.

566784 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859320).

566784 is an abundant number, since it is smaller than the sum of its proper divisors (1151856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566784 is an equidigital number, since it uses as much as digits as its factorization.

566784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 46 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 566784 is about 752.8505827852. The cubic root of 566784 is about 82.7572137692.

The spelling of 566784 in words is "five hundred sixty-six thousand, seven hundred eighty-four".