204703 has 4 divisors (see below), whose sum is σ = 205720. Its totient is φ = 203688.

The previous prime is 204679. The next prime is 204707. The reversal of 204703 is 307402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 307402 = 2 ⋅153701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204703 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (51430).

2²⁰⁴⁷⁰³ is an apocalyptic number.

204703 is a deficient number, since it is larger than the sum of its proper divisors (1017).

204703 is an equidigital number, since it uses as much as digits as its factorization.

204703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 204703 is about 452.4411563950. The cubic root of 204703 is about 58.9351964916.

The spelling of 204703 in words is "two hundred four thousand, seven hundred three", and thus it is an iban number.