97198291 has 2 divisors, whose sum is σ = 97198292. Its totient is φ = 97198290.

The previous prime is 97198279. The next prime is 97198301. The reversal of 97198291 is 19289179.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97198291 - 2¹³ = 97190099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97198261) 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, 48599145 + 48599146.

It is an arithmetic number, because the mean of its divisors is an integer number (48599146).

Almost surely, 2^97198291 is an apocalyptic number.

97198291 is a deficient number, since it is larger than the sum of its proper divisors (1).

97198291 is an equidigital number, since it uses as much as digits as its factorization.

97198291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 46.

The square root of 97198291 is about 9858.9193626888. The cubic root of 97198291 is about 459.7829647232.

The spelling of 97198291 in words is "ninety-seven million, one hundred ninety-eight thousand, two hundred ninety-one".