97516817 has 2 divisors, whose sum is σ = 97516818. Its totient is φ = 97516816.

The previous prime is 97516807. The next prime is 97516829. The reversal of 97516817 is 71861579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61324561 + 36192256 = 7831^2 + 6016^2 .

It is a cyclic number.

It is not a de Polignac number, because 97516817 - 2⁴ = 97516801 is a prime.

It is a super-2 number, since 2×97516817² = 19019059195622978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97516807) 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, 48758408 + 48758409.

It is an arithmetic number, because the mean of its divisors is an integer number (48758409).

Almost surely, 2^97516817 is an apocalyptic number.

It is an amenable number.

97516817 is a deficient number, since it is larger than the sum of its proper divisors (1).

97516817 is an equidigital number, since it uses as much as digits as its factorization.

97516817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 44.

The square root of 97516817 is about 9875.0603542459. The cubic root of 97516817 is about 460.2846646976.

The spelling of 97516817 in words is "ninety-seven million, five hundred sixteen thousand, eight hundred seventeen".