204693 has 12 divisors (see below), whose sum is σ = 285984. Its totient is φ = 130200.

The previous prime is 204679. The next prime is 204707. The reversal of 204693 is 396402.

It is an interprime number because it is at equal distance from previous prime (204679) and next prime (204707).

It is not a de Polignac number, because 204693 - 2⁸ = 204437 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204613) 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 11 ways as a sum of consecutive naturals, for example, 2848 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (23832).

2²⁰⁴⁶⁹³ is an apocalyptic number.

It is an amenable number.

204693 is a deficient number, since it is larger than the sum of its proper divisors (81291).

204693 is an equidigital number, since it uses as much as digits as its factorization.

204693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 204693 is about 452.4301050991. The cubic root of 204693 is about 58.9342367897.

The spelling of 204693 in words is "two hundred four thousand, six hundred ninety-three".