204685273 has 16 divisors (see below), whose sum is σ = 223445376. Its totient is φ = 186376320.

The previous prime is 204685267. The next prime is 204685279. The reversal of 204685273 is 372586402.

It is an interprime number because it is at equal distance from previous prime (204685267) and next prime (204685279).

It is not a de Polignac number, because 204685273 - 2²¹ = 202588121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204685279) 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 15 ways as a sum of consecutive naturals, for example, 447661 + ... + 448117.

It is an arithmetic number, because the mean of its divisors is an integer number (13965336).

Almost surely, 2^204685273 is an apocalyptic number.

It is an amenable number.

204685273 is a deficient number, since it is larger than the sum of its proper divisors (18760103).

204685273 is a wasteful number, since it uses less digits than its factorization.

204685273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 204685273 is about 14306.8260980554. The cubic root of 204685273 is about 589.3349520665.

The spelling of 204685273 in words is "two hundred four million, six hundred eighty-five thousand, two hundred seventy-three".