204211889 has 8 divisors (see below), whose sum is σ = 233536128. Its totient is φ = 174925440.

The previous prime is 204211831. The next prime is 204211897. The reversal of 204211889 is 988112402.

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

It is a cyclic number.

It is not a de Polignac number, because 204211889 - 2¹² = 204207793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204211489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284 + ... + 20474.

It is an arithmetic number, because the mean of its divisors is an integer number (29192016).

Almost surely, 2^204211889 is an apocalyptic number.

It is an amenable number.

204211889 is a deficient number, since it is larger than the sum of its proper divisors (29324239).

204211889 is a wasteful number, since it uses less digits than its factorization.

204211889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18895.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 204211889 is about 14290.2725306413. The cubic root of 204211889 is about 588.8802750227.

It can be divided in two parts, 2042 and 11889, that added together give a palindrome (13931).

The spelling of 204211889 in words is "two hundred four million, two hundred eleven thousand, eight hundred eighty-nine".