99995197 has 2 divisors, whose sum is σ = 99995198. Its totient is φ = 99995196.

The previous prime is 99995177. The next prime is 99995209. The reversal of 99995197 is 79159999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99321156 + 674041 = 9966^2 + 821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99995197 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 (99995177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997598 + 49997599.

It is an arithmetic number, because the mean of its divisors is an integer number (49997599).

Almost surely, 2^99995197 is an apocalyptic number.

It is an amenable number.

99995197 is a deficient number, since it is larger than the sum of its proper divisors (1).

99995197 is an equidigital number, since it uses as much as digits as its factorization.

99995197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2066715, while the sum is 58.

The square root of 99995197 is about 9999.7598471163. The cubic root of 99995197 is about 464.1514520586.

The spelling of 99995197 in words is "ninety-nine million, nine hundred ninety-five thousand, one hundred ninety-seven".