204516789 has 8 divisors (see below), whose sum is σ = 272848800. Its totient is φ = 136264656.

The previous prime is 204516773. The next prime is 204516799. The reversal of 204516789 is 987615402.

204516789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204516789 - 2⁴ = 204516773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204516789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204516799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13714 + ... + 24435.

It is an arithmetic number, because the mean of its divisors is an integer number (34106100).

Almost surely, 2^204516789 is an apocalyptic number.

It is an amenable number.

204516789 is a deficient number, since it is larger than the sum of its proper divisors (68332011).

204516789 is a wasteful number, since it uses less digits than its factorization.

204516789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39939.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 204516789 is about 14300.9366476465. The cubic root of 204516789 is about 589.1732065647.

The spelling of 204516789 in words is "two hundred four million, five hundred sixteen thousand, seven hundred eighty-nine".