8488771217 has 2 divisors, whose sum is σ = 8488771218. Its totient is φ = 8488771216.

The previous prime is 8488771183. The next prime is 8488771229. The reversal of 8488771217 is 7121778848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8034612496 + 454158721 = 89636^2 + 21311^2 .

It is a cyclic number.

It is not a de Polignac number, because 8488771217 - 2³² = 4193803921 is a prime.

It is a super-2 number, since 2×8488771217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8488771117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244385608 + 4244385609.

It is an arithmetic number, because the mean of its divisors is an integer number (4244385609).

Almost surely, 2^8488771217 is an apocalyptic number.

It is an amenable number.

8488771217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8488771217 is an equidigital number, since it uses as much as digits as its factorization.

8488771217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1404928, while the sum is 53.

The square root of 8488771217 is about 92134.5278220928. The cubic root of 8488771217 is about 2039.9284878975.

The spelling of 8488771217 in words is "eight billion, four hundred eighty-eight million, seven hundred seventy-one thousand, two hundred seventeen".