204688039 has 4 divisors (see below), whose sum is σ = 205204024. Its totient is φ = 204172056.

The previous prime is 204688027. The next prime is 204688049. The reversal of 204688039 is 930886402.

204688039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204688039 - 2⁷ = 204687911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204687992 and 204688010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204688019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257397 + ... + 258190.

It is an arithmetic number, because the mean of its divisors is an integer number (51301006).

Almost surely, 2^204688039 is an apocalyptic number.

204688039 is a deficient number, since it is larger than the sum of its proper divisors (515985).

204688039 is an equidigital number, since it uses as much as digits as its factorization.

204688039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515984.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 204688039 is about 14306.9227648716. The cubic root of 204688039 is about 589.3376067000.

The spelling of 204688039 in words is "two hundred four million, six hundred eighty-eight thousand, thirty-nine".