9722097397 has 2 divisors, whose sum is σ = 9722097398. Its totient is φ = 9722097396.

The previous prime is 9722097391. The next prime is 9722097443. The reversal of 9722097397 is 7937902279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7799362596 + 1922734801 = 88314^2 + 43849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9722097397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9722097391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4861048698 + 4861048699.

It is an arithmetic number, because the mean of its divisors is an integer number (4861048699).

Almost surely, 2^9722097397 is an apocalyptic number.

It is an amenable number.

9722097397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9722097397 is an equidigital number, since it uses as much as digits as its factorization.

9722097397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000564, while the sum is 55.

The square root of 9722097397 is about 98600.6967368892. The cubic root of 9722097397 is about 2134.2894740689.

The spelling of 9722097397 in words is "nine billion, seven hundred twenty-two million, ninety-seven thousand, three hundred ninety-seven".