204684 has 24 divisors (see below), whose sum is σ = 491568. Its totient is φ = 66240.

The previous prime is 204679. The next prime is 204707. The reversal of 204684 is 486402.

204684 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214 + ... + 674.

It is an arithmetic number, because the mean of its divisors is an integer number (20482).

2²⁰⁴⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

204684 is an abundant number, since it is smaller than the sum of its proper divisors (286884).

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

204684 is a wasteful number, since it uses less digits than its factorization.

204684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 204684 is about 452.4201587021. The cubic root of 204684 is about 58.9333730313.

It can be divided in two parts, 204 and 684, that added together give a palindrome (888).

The spelling of 204684 in words is "two hundred four thousand, six hundred eighty-four".