8959317691 has 2 divisors, whose sum is σ = 8959317692. Its totient is φ = 8959317690.

The previous prime is 8959317659. The next prime is 8959317749. The reversal of 8959317691 is 1967139598.

It is an a-pointer prime, because the next prime (8959317749) can be obtained adding 8959317691 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8959317691 - 2⁵ = 8959317659 is a prime.

It is not a weakly prime, because it can be changed into another prime (8959317091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4479658845 + 4479658846.

It is an arithmetic number, because the mean of its divisors is an integer number (4479658846).

Almost surely, 2^8959317691 is an apocalyptic number.

8959317691 is a deficient number, since it is larger than the sum of its proper divisors (1).

8959317691 is an equidigital number, since it uses as much as digits as its factorization.

8959317691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 58.

The square root of 8959317691 is about 94653.6723587627. The cubic root of 8959317691 is about 2076.9449178923.

The spelling of 8959317691 in words is "eight billion, nine hundred fifty-nine million, three hundred seventeen thousand, six hundred ninety-one".