8708247389 has 2 divisors, whose sum is σ = 8708247390. Its totient is φ = 8708247388.

The previous prime is 8708247343. The next prime is 8708247407. The reversal of 8708247389 is 9837428078.

8708247389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708062489 + 184900 = 93317^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 8708247389 - 2²⁴ = 8691470173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8708247589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4354123694 + 4354123695.

It is an arithmetic number, because the mean of its divisors is an integer number (4354123695).

Almost surely, 2^8708247389 is an apocalyptic number.

It is an amenable number.

8708247389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8708247389 is an equidigital number, since it uses as much as digits as its factorization.

8708247389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The square root of 8708247389 is about 93317.9907038295. The cubic root of 8708247389 is about 2057.3598147194.

The spelling of 8708247389 in words is "eight billion, seven hundred eight million, two hundred forty-seven thousand, three hundred eighty-nine".