3967665896297 has 2 divisors, whose sum is σ = 3967665896298. Its totient is φ = 3967665896296.

The previous prime is 3967665896287. The next prime is 3967665896329. The reversal of 3967665896297 is 7926985667693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3041713890601 + 925952005696 = 1744051^2 + 962264^2 .

It is a cyclic number.

It is not a de Polignac number, because 3967665896297 - 2²⁰ = 3967664847721 is a prime.

It is not a weakly prime, because it can be changed into another prime (3967665896287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983832948148 + 1983832948149.

It is an arithmetic number, because the mean of its divisors is an integer number (1983832948149).

Almost surely, 2^{3967665896297} is an apocalyptic number.

It is an amenable number.

3967665896297 is a deficient number, since it is larger than the sum of its proper divisors (1).

3967665896297 is an equidigital number, since it uses as much as digits as its factorization.

3967665896297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11110659840, while the sum is 83.

The spelling of 3967665896297 in words is "three trillion, nine hundred sixty-seven billion, six hundred sixty-five million, eight hundred ninety-six thousand, two hundred ninety-seven".