204507873 has 12 divisors (see below), whose sum is σ = 295526868. Its totient is φ = 136280160.

The previous prime is 204507869. The next prime is 204507889. The reversal of 204507873 is 378705402.

It can be written as a sum of positive squares in 2 ways, for example, as 71520849 + 132987024 = 8457^2 + 11532^2 .

It is not a de Polignac number, because 204507873 - 2² = 204507869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204507833) 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 11 ways as a sum of consecutive naturals, for example, 31963 + ... + 37823.

It is an arithmetic number, because the mean of its divisors is an integer number (24627239).

Almost surely, 2^204507873 is an apocalyptic number.

It is an amenable number.

204507873 is a deficient number, since it is larger than the sum of its proper divisors (91018995).

204507873 is a wasteful number, since it uses less digits than its factorization.

204507873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 204507873 is about 14300.6249164154. The cubic root of 204507873 is about 589.1646446846.

The spelling of 204507873 in words is "two hundred four million, five hundred seven thousand, eight hundred seventy-three".