97666193 has 2 divisors, whose sum is σ = 97666194. Its totient is φ = 97666192.

The previous prime is 97666169. The next prime is 97666253. The reversal of 97666193 is 39166679.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 21836929 = 8708^2 + 4673^2 .

It is a cyclic number.

It is not a de Polignac number, because 97666193 - 2⁸ = 97665937 is a prime.

It is a super-2 number, since 2×97666193² = 19077370510226498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97666103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48833096 + 48833097.

It is an arithmetic number, because the mean of its divisors is an integer number (48833097).

Almost surely, 2^97666193 is an apocalyptic number.

It is an amenable number.

97666193 is a deficient number, since it is larger than the sum of its proper divisors (1).

97666193 is an equidigital number, since it uses as much as digits as its factorization.

97666193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 97666193 is about 9882.6207556498. The cubic root of 97666193 is about 460.5195657384.

The spelling of 97666193 in words is "ninety-seven million, six hundred sixty-six thousand, one hundred ninety-three".