8270775217 has 2 divisors, whose sum is σ = 8270775218. Its totient is φ = 8270775216.

The previous prime is 8270775211. The next prime is 8270775241. The reversal of 8270775217 is 7125770728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7191718416 + 1079056801 = 84804^2 + 32849^2 .

It is a cyclic number.

It is not a de Polignac number, because 8270775217 - 2³ = 8270775209 is a prime.

It is not a weakly prime, because it can be changed into another prime (8270775211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4135387608 + 4135387609.

It is an arithmetic number, because the mean of its divisors is an integer number (4135387609).

Almost surely, 2^8270775217 is an apocalyptic number.

It is an amenable number.

8270775217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8270775217 is an equidigital number, since it uses as much as digits as its factorization.

8270775217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384160, while the sum is 46.

The square root of 8270775217 is about 90943.8025211174. The cubic root of 8270775217 is about 2022.3147024836.

The spelling of 8270775217 in words is "eight billion, two hundred seventy million, seven hundred seventy-five thousand, two hundred seventeen".