204728673 has 8 divisors (see below), whose sum is σ = 273161088. Its totient is φ = 136391024.

The previous prime is 204728651. The next prime is 204728677. The reversal of 204728673 is 376827402.

204728673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 204728673 - 2⁶ = 204728609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204728677) 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, 18486 + ... + 27407.

It is an arithmetic number, because the mean of its divisors is an integer number (34145136).

Almost surely, 2^204728673 is an apocalyptic number.

It is an amenable number.

204728673 is a deficient number, since it is larger than the sum of its proper divisors (68432415).

204728673 is a wasteful number, since it uses less digits than its factorization.

204728673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47383.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 204728673 is about 14308.3427761569. The cubic root of 204728673 is about 589.3766019110.

The spelling of 204728673 in words is "two hundred four million, seven hundred twenty-eight thousand, six hundred seventy-three".