9967951297 has 2 divisors, whose sum is σ = 9967951298. Its totient is φ = 9967951296.

The previous prime is 9967951291. The next prime is 9967951307. The reversal of 9967951297 is 7921597699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6701714496 + 3266236801 = 81864^2 + 57151^2 .

It is an emirp because it is prime and its reverse (7921597699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9967951297 - 2¹⁹ = 9967427009 is a prime.

It is not a weakly prime, because it can be changed into another prime (9967951291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983975648 + 4983975649.

It is an arithmetic number, because the mean of its divisors is an integer number (4983975649).

Almost surely, 2^9967951297 is an apocalyptic number.

It is an amenable number.

9967951297 is a deficient number, since it is larger than the sum of its proper divisors (1).

9967951297 is an equidigital number, since it uses as much as digits as its factorization.

9967951297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19289340, while the sum is 64.

The square root of 9967951297 is about 99839.6278889300. The cubic root of 9967951297 is about 2152.1306656592.

The spelling of 9967951297 in words is "nine billion, nine hundred sixty-seven million, nine hundred fifty-one thousand, two hundred ninety-seven".