8726716589 has 2 divisors, whose sum is σ = 8726716590. Its totient is φ = 8726716588.

The previous prime is 8726716577. The next prime is 8726716633. The reversal of 8726716589 is 9856176278.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8004880900 + 721835689 = 89470^2 + 26867^2 .

It is a cyclic number.

It is not a de Polignac number, because 8726716589 - 2⁸ = 8726716333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8726716519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4363358294 + 4363358295.

It is an arithmetic number, because the mean of its divisors is an integer number (4363358295).

Almost surely, 2^8726716589 is an apocalyptic number.

It is an amenable number.

8726716589 is a deficient number, since it is larger than the sum of its proper divisors (1).

8726716589 is an equidigital number, since it uses as much as digits as its factorization.

8726716589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 59.

The square root of 8726716589 is about 93416.8966996870. The cubic root of 8726716589 is about 2058.8132628821.

The spelling of 8726716589 in words is "eight billion, seven hundred twenty-six million, seven hundred sixteen thousand, five hundred eighty-nine".