8097147491 has 2 divisors, whose sum is σ = 8097147492. Its totient is φ = 8097147490.

The previous prime is 8097147437. The next prime is 8097147529. The reversal of 8097147491 is 1947417908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8097147491 - 2³⁰ = 7023405667 is a prime.

It is not a weakly prime, because it can be changed into another prime (8097147691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4048573745 + 4048573746.

It is an arithmetic number, because the mean of its divisors is an integer number (4048573746).

Almost surely, 2^8097147491 is an apocalyptic number.

8097147491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8097147491 is an equidigital number, since it uses as much as digits as its factorization.

8097147491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 8097147491 is about 89984.1513323319. The cubic root of 8097147491 is about 2008.0630739851.

The spelling of 8097147491 in words is "eight billion, ninety-seven million, one hundred forty-seven thousand, four hundred ninety-one".