204676897 has 2 divisors, whose sum is σ = 204676898. Its totient is φ = 204676896.

The previous prime is 204676877. The next prime is 204676919. The reversal of 204676897 is 798676402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170851041 + 33825856 = 13071^2 + 5816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204676897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204676897.

It is not a weakly prime, because it can be changed into another prime (204676817) 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 as a sum of consecutive naturals, namely, 102338448 + 102338449.

It is an arithmetic number, because the mean of its divisors is an integer number (102338449).

Almost surely, 2^204676897 is an apocalyptic number.

It is an amenable number.

204676897 is a deficient number, since it is larger than the sum of its proper divisors (1).

204676897 is an equidigital number, since it uses as much as digits as its factorization.

204676897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 204676897 is about 14306.5333676611. The cubic root of 204676897 is about 589.3269131607.

The spelling of 204676897 in words is "two hundred four million, six hundred seventy-six thousand, eight hundred ninety-seven".