97297391 has 2 divisors, whose sum is σ = 97297392. Its totient is φ = 97297390.

The previous prime is 97297363. The next prime is 97297397. The reversal of 97297391 is 19379279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97297391 - 2²⁶ = 30188527 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97297397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48648695 + 48648696.

It is an arithmetic number, because the mean of its divisors is an integer number (48648696).

Almost surely, 2^97297391 is an apocalyptic number.

97297391 is a deficient number, since it is larger than the sum of its proper divisors (1).

97297391 is an equidigital number, since it uses as much as digits as its factorization.

97297391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214326, while the sum is 47.

The square root of 97297391 is about 9863.9439880810. The cubic root of 97297391 is about 459.9391712256.

The spelling of 97297391 in words is "ninety-seven million, two hundred ninety-seven thousand, three hundred ninety-one".