8287252189 has 2 divisors, whose sum is σ = 8287252190. Its totient is φ = 8287252188.

The previous prime is 8287252187. The next prime is 8287252243. The reversal of 8287252189 is 9812527828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6315004089 + 1972248100 = 79467^2 + 44410^2 .

It is a cyclic number.

It is not a de Polignac number, because 8287252189 - 2¹ = 8287252187 is a prime.

Together with 8287252187, 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 (8287252187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4143626094 + 4143626095.

It is an arithmetic number, because the mean of its divisors is an integer number (4143626095).

Almost surely, 2^8287252189 is an apocalyptic number.

It is an amenable number.

8287252189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8287252189 is an equidigital number, since it uses as much as digits as its factorization.

8287252189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 52.

The square root of 8287252189 is about 91034.3462051549. The cubic root of 8287252189 is about 2023.6567580395.

The spelling of 8287252189 in words is "eight billion, two hundred eighty-seven million, two hundred fifty-two thousand, one hundred eighty-nine".