99743197 has 2 divisors, whose sum is σ = 99743198. Its totient is φ = 99743196.

The previous prime is 99743183. The next prime is 99743227. The reversal of 99743197 is 79134799.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98684356 + 1058841 = 9934^2 + 1029^2 .

It is a cyclic number.

It is not a de Polignac number, because 99743197 - 2¹¹ = 99741149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99743197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99743107) 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, 49871598 + 49871599.

It is an arithmetic number, because the mean of its divisors is an integer number (49871599).

Almost surely, 2^99743197 is an apocalyptic number.

It is an amenable number.

99743197 is a deficient number, since it is larger than the sum of its proper divisors (1).

99743197 is an equidigital number, since it uses as much as digits as its factorization.

99743197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 49.

The square root of 99743197 is about 9987.1515959256. The cubic root of 99743197 is about 463.7612181156.

The spelling of 99743197 in words is "ninety-nine million, seven hundred forty-three thousand, one hundred ninety-seven".