578866 has 16 divisors (see below), whose sum is σ = 912384. Its totient is φ = 275184.

The previous prime is 578861. The next prime is 578881. The reversal of 578866 is 668875.

It is not an unprimeable number, because it can be changed into a prime (578861) by changing a digit.

578866 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 in 7 ways as a sum of consecutive naturals, for example, 4495 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (57024).

2⁵⁷⁸⁸⁶⁶ is an apocalyptic number.

578866 is a deficient number, since it is larger than the sum of its proper divisors (333518).

578866 is a wasteful number, since it uses less digits than its factorization.

578866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its digits is 80640, while the sum is 40.

The square root of 578866 is about 760.8324388458. The cubic root of 578866 is about 83.3411228274.

Subtracting 578866 from its reverse (668875), we obtain a palindrome (90009).

It can be divided in two parts, 578 and 866, that added together give a square (1444 = 38²).

The spelling of 578866 in words is "five hundred seventy-eight thousand, eight hundred sixty-six".