97216243 has 2 divisors, whose sum is σ = 97216244. Its totient is φ = 97216242.

The previous prime is 97216219. The next prime is 97216261. The reversal of 97216243 is 34261279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97216243 - 2²¹ = 95119091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97216199 and 97216208.

It is not a weakly prime, because it can be changed into another prime (97216543) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48608121 + 48608122.

It is an arithmetic number, because the mean of its divisors is an integer number (48608122).

Almost surely, 2^97216243 is an apocalyptic number.

97216243 is a deficient number, since it is larger than the sum of its proper divisors (1).

97216243 is an equidigital number, since it uses as much as digits as its factorization.

97216243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 97216243 is about 9859.8297652647. The cubic root of 97216243 is about 459.8112694584.

The spelling of 97216243 in words is "ninety-seven million, two hundred sixteen thousand, two hundred forty-three".