99197093 has 2 divisors, whose sum is σ = 99197094. Its totient is φ = 99197092.

The previous prime is 99197089. The next prime is 99197099. The reversal of 99197093 is 39079199.

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., 58262689 + 40934404 = 7633^2 + 6398^2 .

It is an emirp because it is prime and its reverse (39079199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99197093 - 2² = 99197089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99197099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49598546 + 49598547.

It is an arithmetic number, because the mean of its divisors is an integer number (49598547).

Almost surely, 2^99197093 is an apocalyptic number.

It is an amenable number.

99197093 is a deficient number, since it is larger than the sum of its proper divisors (1).

99197093 is an equidigital number, since it uses as much as digits as its factorization.

99197093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 99197093 is about 9959.7737424100. The cubic root of 99197093 is about 462.9132890126.

The spelling of 99197093 in words is "ninety-nine million, one hundred ninety-seven thousand, ninety-three".