204886 has 16 divisors (see below), whose sum is σ = 342720. Its totient is φ = 91080.

The previous prime is 204871. The next prime is 204887. The reversal of 204886 is 688402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (21420).

2²⁰⁴⁸⁸⁶ is an apocalyptic number.

204886 is a deficient number, since it is larger than the sum of its proper divisors (137834).

204886 is a wasteful number, since it uses less digits than its factorization.

204886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 204886 is about 452.6433474602. The cubic root of 204886 is about 58.9527535192.

The spelling of 204886 in words is "two hundred four thousand, eight hundred eighty-six".