204871107 has 12 divisors (see below), whose sum is σ = 317759496. Its totient is φ = 117069120.

The previous prime is 204871099. The next prime is 204871111. The reversal of 204871107 is 701178402.

It is not a de Polignac number, because 204871107 - 2³ = 204871099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204821107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696694 + ... + 696987.

It is an arithmetic number, because the mean of its divisors is an integer number (26479958).

Almost surely, 2^204871107 is an apocalyptic number.

204871107 is a deficient number, since it is larger than the sum of its proper divisors (112888389).

204871107 is a wasteful number, since it uses less digits than its factorization.

204871107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393698 (or 1393691 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 204871107 is about 14313.3192167296. The cubic root of 204871107 is about 589.5132507501.

The spelling of 204871107 in words is "two hundred four million, eight hundred seventy-one thousand, one hundred seven".