204049973 has 4 divisors (see below), whose sum is σ = 204186528. Its totient is φ = 203913420.

The previous prime is 204049961. The next prime is 204050009. The reversal of 204049973 is 379940402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204049973 - 2⁴ = 204049957 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 (204049903) 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, 66011 + ... + 69032.

It is an arithmetic number, because the mean of its divisors is an integer number (51046632).

Almost surely, 2^204049973 is an apocalyptic number.

It is an amenable number.

204049973 is a deficient number, since it is larger than the sum of its proper divisors (136555).

204049973 is a wasteful number, since it uses less digits than its factorization.

204049973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136554.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 204049973 is about 14284.6061548788. The cubic root of 204049973 is about 588.7245962807.

The spelling of 204049973 in words is "two hundred four million, forty-nine thousand, nine hundred seventy-three".