8234172689 has 2 divisors, whose sum is σ = 8234172690. Its totient is φ = 8234172688.

The previous prime is 8234172599. The next prime is 8234172731. The reversal of 8234172689 is 9862714328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8060987089 + 173185600 = 89783^2 + 13160^2 .

It is a cyclic number.

It is not a de Polignac number, because 8234172689 - 2¹⁶ = 8234107153 is a prime.

It is not a weakly prime, because it can be changed into another prime (8234172589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4117086344 + 4117086345.

It is an arithmetic number, because the mean of its divisors is an integer number (4117086345).

Almost surely, 2^8234172689 is an apocalyptic number.

It is an amenable number.

8234172689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8234172689 is an equidigital number, since it uses as much as digits as its factorization.

8234172689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The square root of 8234172689 is about 90742.3423160324. The cubic root of 8234172689 is about 2019.3270222475.

The spelling of 8234172689 in words is "eight billion, two hundred thirty-four million, one hundred seventy-two thousand, six hundred eighty-nine".