8717080189 has 2 divisors, whose sum is σ = 8717080190. Its totient is φ = 8717080188.

The previous prime is 8717080187. The next prime is 8717080193. The reversal of 8717080189 is 9810807178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8697054564 + 20025625 = 93258^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 8717080189 - 2¹ = 8717080187 is a prime.

Together with 8717080187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8717080187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4358540094 + 4358540095.

It is an arithmetic number, because the mean of its divisors is an integer number (4358540095).

Almost surely, 2^8717080189 is an apocalyptic number.

It is an amenable number.

8717080189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8717080189 is an equidigital number, since it uses as much as digits as its factorization.

8717080189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 49.

The square root of 8717080189 is about 93365.3050602846. The cubic root of 8717080189 is about 2058.0551749668.

The spelling of 8717080189 in words is "eight billion, seven hundred seventeen million, eighty thousand, one hundred eighty-nine".