204087 has 8 divisors (see below), whose sum is σ = 293104. Its totient is φ = 125568.

The previous prime is 204067. The next prime is 204101. The reversal of 204087 is 780402.

It is a happy number.

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

It is not a de Polignac number, because 204087 - 2⁶ = 204023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (36638).

2²⁰⁴⁰⁸⁷ is an apocalyptic number.

204087 is a deficient number, since it is larger than the sum of its proper divisors (89017).

204087 is a wasteful number, since it uses less digits than its factorization.

204087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 204087 is about 451.7598919780. The cubic root of 204087 is about 58.8760204204.

Adding to 204087 its reverse (780402), we get a palindrome (984489).

The spelling of 204087 in words is "two hundred four thousand, eighty-seven".