204497 has 8 divisors (see below), whose sum is σ = 220800. Its totient is φ = 188784.

The previous prime is 204487. The next prime is 204509. The reversal of 204497 is 794402.

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

It is not a de Polignac number, because 204497 - 2⁴ = 204481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (27600).

2²⁰⁴⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

204497 is a deficient number, since it is larger than the sum of its proper divisors (16303).

204497 is a wasteful number, since it uses less digits than its factorization.

204497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 204497 is about 452.2134451783. The cubic root of 204497 is about 58.9154203195.

Adding to 204497 its reverse (794402), we get a palindrome (998899).

The spelling of 204497 in words is "two hundred four thousand, four hundred ninety-seven".