204830197 has 12 divisors (see below), whose sum is σ = 241964064. Its totient is φ = 171883920.

The previous prime is 204830191. The next prime is 204830221. The reversal of 204830197 is 791038402.

It is not a de Polignac number, because 204830197 - 2¹¹ = 204828149 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 (204830191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53233 + ... + 56950.

It is an arithmetic number, because the mean of its divisors is an integer number (20163672).

Almost surely, 2^204830197 is an apocalyptic number.

It is an amenable number.

204830197 is a deficient number, since it is larger than the sum of its proper divisors (37133867).

204830197 is a wasteful number, since it uses less digits than its factorization.

204830197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110220 (or 110207 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 204830197 is about 14311.8900568723. The cubic root of 204830197 is about 589.4740088533.

Adding to 204830197 its reverse (791038402), we get a palindrome (995868599).

The spelling of 204830197 in words is "two hundred four million, eight hundred thirty thousand, one hundred ninety-seven".