200199997 has 2 divisors, whose sum is σ = 200199998. Its totient is φ = 200199996.

The previous prime is 200199977. The next prime is 200200003. The reversal of 200199997 is 799991002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142348761 + 57851236 = 11931^2 + 7606^2 .

It is a cyclic number.

It is not a de Polignac number, because 200199997 - 2⁷ = 200199869 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 (200199947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100099998 + 100099999.

It is an arithmetic number, because the mean of its divisors is an integer number (100099999).

Almost surely, 2^200199997 is an apocalyptic number.

It is an amenable number.

200199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

200199997 is an equidigital number, since it uses as much as digits as its factorization.

200199997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 200199997 is about 14149.2048186462. The cubic root of 200199997 is about 584.9984142943.

The spelling of 200199997 in words is "two hundred million, one hundred ninety-nine thousand, nine hundred ninety-seven".