204633 has 32 divisors (see below), whose sum is σ = 362880. Its totient is φ = 112320.

The previous prime is 204623. The next prime is 204641. The reversal of 204633 is 336402.

It is not a de Polignac number, because 204633 - 2⁵ = 204601 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 3835 + ... + 3887.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2²⁰⁴⁶³³ is an apocalyptic number.

It is an amenable number.

204633 is a deficient number, since it is larger than the sum of its proper divisors (158247).

204633 is a wasteful number, since it uses less digits than its factorization.

204633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 204633 is about 452.3637916545. The cubic root of 204633 is about 58.9284779219.

Subtracting 204633 from its reverse (336402), we obtain a square (131769 = 363²).

The spelling of 204633 in words is "two hundred four thousand, six hundred thirty-three".