200841997 has 2 divisors, whose sum is σ = 200841998. Its totient is φ = 200841996.

The previous prime is 200841973. The next prime is 200842001. The reversal of 200841997 is 799148002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191020041 + 9821956 = 13821^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 200841997 - 2⁷ = 200841869 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200841967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100420998 + 100420999.

It is an arithmetic number, because the mean of its divisors is an integer number (100420999).

Almost surely, 2^200841997 is an apocalyptic number.

It is an amenable number.

200841997 is a deficient number, since it is larger than the sum of its proper divisors (1).

200841997 is an equidigital number, since it uses as much as digits as its factorization.

200841997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 200841997 is about 14171.8734470782. The cubic root of 200841997 is about 585.6230700451.

Adding to 200841997 its reverse (799148002), we get a palindrome (999989999).

The spelling of 200841997 in words is "two hundred million, eight hundred forty-one thousand, nine hundred ninety-seven".