8355973091 has 2 divisors, whose sum is σ = 8355973092. Its totient is φ = 8355973090.

The previous prime is 8355973019. The next prime is 8355973099. The reversal of 8355973091 is 1903795538.

Together with previous prime (8355973019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8355973091 is a prime.

It is not a weakly prime, because it can be changed into another prime (8355973099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4177986545 + 4177986546.

It is an arithmetic number, because the mean of its divisors is an integer number (4177986546).

Almost surely, 2^8355973091 is an apocalyptic number.

8355973091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8355973091 is an equidigital number, since it uses as much as digits as its factorization.

8355973091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 8355973091 is about 91411.0118694679. The cubic root of 8355973091 is about 2029.2349994275.

The spelling of 8355973091 in words is "eight billion, three hundred fifty-five million, nine hundred seventy-three thousand, ninety-one".