204003911 has 4 divisors (see below), whose sum is σ = 208748232. Its totient is φ = 199259592.

The previous prime is 204003889. The next prime is 204003913. The reversal of 204003911 is 119300402.

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

It is not a de Polignac number, because 204003911 - 2⁶ = 204003847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204003913) 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 3 ways as a sum of consecutive naturals, for example, 2372096 + ... + 2372181.

It is an arithmetic number, because the mean of its divisors is an integer number (52187058).

Almost surely, 2^204003911 is an apocalyptic number.

204003911 is a deficient number, since it is larger than the sum of its proper divisors (4744321).

204003911 is an equidigital number, since it uses as much as digits as its factorization.

204003911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744320.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 204003911 is about 14282.9937688147. The cubic root of 204003911 is about 588.6802936151.

The spelling of 204003911 in words is "two hundred four million, three thousand, nine hundred eleven".