97566697 has 2 divisors, whose sum is σ = 97566698. Its totient is φ = 97566696.

The previous prime is 97566683. The next prime is 97566719. The reversal of 97566697 is 79666579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94945536 + 2621161 = 9744^2 + 1619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97566697 is a prime.

It is not a weakly prime, because it can be changed into another prime (97566397) 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, 48783348 + 48783349.

It is an arithmetic number, because the mean of its divisors is an integer number (48783349).

Almost surely, 2^97566697 is an apocalyptic number.

It is an amenable number.

97566697 is a deficient number, since it is larger than the sum of its proper divisors (1).

97566697 is an equidigital number, since it uses as much as digits as its factorization.

97566697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 55.

The square root of 97566697 is about 9877.5855855568. The cubic root of 97566697 is about 460.3631300891.

The spelling of 97566697 in words is "ninety-seven million, five hundred sixty-six thousand, six hundred ninety-seven".