9708448091 has 2 divisors, whose sum is σ = 9708448092. Its totient is φ = 9708448090.

The previous prime is 9708448067. The next prime is 9708448153. The reversal of 9708448091 is 1908448079.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9708448091 - 2¹⁸ = 9708185947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9708444091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4854224045 + 4854224046.

It is an arithmetic number, because the mean of its divisors is an integer number (4854224046).

Almost surely, 2^9708448091 is an apocalyptic number.

9708448091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9708448091 is an equidigital number, since it uses as much as digits as its factorization.

9708448091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 9708448091 is about 98531.4573676854. The cubic root of 9708448091 is about 2133.2901967650.

The spelling of 9708448091 in words is "nine billion, seven hundred eight million, four hundred forty-eight thousand, ninety-one".