9797248997 has 2 divisors, whose sum is σ = 9797248998. Its totient is φ = 9797248996.

The previous prime is 9797248991. The next prime is 9797249023. The reversal of 9797248997 is 7998427979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9199495396 + 597753601 = 95914^2 + 24449^2 .

It is a cyclic number.

It is not a de Polignac number, because 9797248997 - 2²² = 9793054693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9797248997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9797248991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4898624498 + 4898624499.

It is an arithmetic number, because the mean of its divisors is an integer number (4898624499).

Almost surely, 2^9797248997 is an apocalyptic number.

It is an amenable number.

9797248997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9797248997 is an equidigital number, since it uses as much as digits as its factorization.

9797248997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144027072, while the sum is 71.

The square root of 9797248997 is about 98981.0537274685. The cubic root of 9797248997 is about 2139.7747016578.

The spelling of 9797248997 in words is "nine billion, seven hundred ninety-seven million, two hundred forty-eight thousand, nine hundred ninety-seven".