97198499 has 2 divisors, whose sum is σ = 97198500. Its totient is φ = 97198498.

The previous prime is 97198489. The next prime is 97198501. The reversal of 97198499 is 99489179.

It is a strong prime.

It is an emirp because it is prime and its reverse (99489179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97198499 - 2²⁰ = 96149923 is a prime.

Together with 97198501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97198489) 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, 48599249 + 48599250.

It is an arithmetic number, because the mean of its divisors is an integer number (48599250).

Almost surely, 2^97198499 is an apocalyptic number.

97198499 is a deficient number, since it is larger than the sum of its proper divisors (1).

97198499 is an equidigital number, since it uses as much as digits as its factorization.

97198499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 56.

The square root of 97198499 is about 9858.9299115066. The cubic root of 97198499 is about 459.7832926946.

The spelling of 97198499 in words is "ninety-seven million, one hundred ninety-eight thousand, four hundred ninety-nine".