204895 has 8 divisors (see below), whose sum is σ = 251856. Its totient is φ = 159936.

The previous prime is 204887. The next prime is 204913. The reversal of 204895 is 598402.

It is a happy number.

204895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204895 - 2³ = 204887 is a prime.

It is a super-2 number, since 2×204895² = 83963922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 262 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (31482).

2²⁰⁴⁸⁹⁵ is an apocalyptic number.

204895 is a deficient number, since it is larger than the sum of its proper divisors (46961).

204895 is an equidigital number, since it uses as much as digits as its factorization.

204895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 204895 is about 452.6532889530. The cubic root of 204895 is about 58.9536167098.

The spelling of 204895 in words is "two hundred four thousand, eight hundred ninety-five".