204803 has 2 divisors, whose sum is σ = 204804. Its totient is φ = 204802.

The previous prime is 204797. The next prime is 204821. The reversal of 204803 is 308402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204803 - 2¹⁶ = 139267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102401 + 102402.

It is an arithmetic number, because the mean of its divisors is an integer number (102402).

2²⁰⁴⁸⁰³ is an apocalyptic number.

204803 is a deficient number, since it is larger than the sum of its proper divisors (1).

204803 is an equidigital number, since it uses as much as digits as its factorization.

204803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204803 is about 452.5516545103. The cubic root of 204803 is about 58.9447917918.

The spelling of 204803 in words is "two hundred four thousand, eight hundred three".