9997050197 has 2 divisors, whose sum is σ = 9997050198. Its totient is φ = 9997050196.

The previous prime is 9997050187. The next prime is 9997050229. The reversal of 9997050197 is 7910507999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8029772881 + 1967277316 = 89609^2 + 44354^2 .

It is a cyclic number.

It is not a de Polignac number, because 9997050197 - 2¹⁰ = 9997049173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9997050187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998525098 + 4998525099.

It is an arithmetic number, because the mean of its divisors is an integer number (4998525099).

Almost surely, 2^9997050197 is an apocalyptic number.

It is an amenable number.

9997050197 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997050197 is an equidigital number, since it uses as much as digits as its factorization.

9997050197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1607445, while the sum is 56.

The square root of 9997050197 is about 99985.2498971723. The cubic root of 9997050197 is about 2154.2228306020. Note that the first 3 decimals are identical.

The spelling of 9997050197 in words is "nine billion, nine hundred ninety-seven million, fifty thousand, one hundred ninety-seven".