204795853 has 4 divisors (see below), whose sum is σ = 207097020. Its totient is φ = 202494688.

The previous prime is 204795839. The next prime is 204795859. The reversal of 204795853 is 358597402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358597402 = 2 ⋅179298701.

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 74425129 = 11418^2 + 8627^2 .

It is a cyclic number.

It is not a de Polignac number, because 204795853 - 2⁹ = 204795341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204795859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150450 + ... + 1150627.

It is an arithmetic number, because the mean of its divisors is an integer number (51774255).

Almost surely, 2^204795853 is an apocalyptic number.

It is an amenable number.

204795853 is a deficient number, since it is larger than the sum of its proper divisors (2301167).

204795853 is an equidigital number, since it uses as much as digits as its factorization.

204795853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301166.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 204795853 is about 14310.6901650479. The cubic root of 204795853 is about 589.4410611935.

The spelling of 204795853 in words is "two hundred four million, seven hundred ninety-five thousand, eight hundred fifty-three".