9909982697 has 2 divisors, whose sum is σ = 9909982698. Its totient is φ = 9909982696.

The previous prime is 9909982679. The next prime is 9909982711. The reversal of 9909982697 is 7962899099.

Together with previous prime (9909982679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9633226201 + 276756496 = 98149^2 + 16636^2 .

It is an emirp because it is prime and its reverse (7962899099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9909982697 - 2⁶ = 9909982633 is a prime.

It is not a weakly prime, because it can be changed into another prime (9909982637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4954991348 + 4954991349.

It is an arithmetic number, because the mean of its divisors is an integer number (4954991349).

Almost surely, 2^9909982697 is an apocalyptic number.

It is an amenable number.

9909982697 is a deficient number, since it is larger than the sum of its proper divisors (1).

9909982697 is an equidigital number, since it uses as much as digits as its factorization.

9909982697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39680928, while the sum is 68.

The square root of 9909982697 is about 99548.8960109553. The cubic root of 9909982697 is about 2147.9506483956.

The spelling of 9909982697 in words is "nine billion, nine hundred nine million, nine hundred eighty-two thousand, six hundred ninety-seven".