99198193 has 2 divisors, whose sum is σ = 99198194. Its totient is φ = 99198192.

The previous prime is 99198173. The next prime is 99198199. The reversal of 99198193 is 39189199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98545329 + 652864 = 9927^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 99198193 - 2⁵ = 99198161 is a prime.

It is not a weakly prime, because it can be changed into another prime (99198199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49599096 + 49599097.

It is an arithmetic number, because the mean of its divisors is an integer number (49599097).

Almost surely, 2^99198193 is an apocalyptic number.

It is an amenable number.

99198193 is a deficient number, since it is larger than the sum of its proper divisors (1).

99198193 is an equidigital number, since it uses as much as digits as its factorization.

99198193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 49.

The square root of 99198193 is about 9959.8289643949. The cubic root of 99198193 is about 462.9150000935.

The spelling of 99198193 in words is "ninety-nine million, one hundred ninety-eight thousand, one hundred ninety-three".