8939983309 has 2 divisors, whose sum is σ = 8939983310. Its totient is φ = 8939983308.

The previous prime is 8939983289. The next prime is 8939983363. The reversal of 8939983309 is 9033899398.

8939983309 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8240645284 + 699338025 = 90778^2 + 26445^2 .

It is a cyclic number.

It is not a de Polignac number, because 8939983309 - 2¹¹ = 8939981261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8939983399) 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, 4469991654 + 4469991655.

It is an arithmetic number, because the mean of its divisors is an integer number (4469991655).

Almost surely, 2^8939983309 is an apocalyptic number.

It is an amenable number.

8939983309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8939983309 is an equidigital number, since it uses as much as digits as its factorization.

8939983309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11337408, while the sum is 61.

The square root of 8939983309 is about 94551.4849645419. The cubic root of 8939983309 is about 2075.4498126982.

The spelling of 8939983309 in words is "eight billion, nine hundred thirty-nine million, nine hundred eighty-three thousand, three hundred nine".