8958386989 has 2 divisors, whose sum is σ = 8958386990. Its totient is φ = 8958386988.

The previous prime is 8958386939. The next prime is 8958386999. The reversal of 8958386989 is 9896838598.

8958386989 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., 7198164964 + 1760222025 = 84842^2 + 41955^2 .

It is a cyclic number.

It is not a de Polignac number, because 8958386989 - 2¹³ = 8958378797 is a prime.

It is a super-2 number, since 2×8958386989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8958386939) 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, 4479193494 + 4479193495.

It is an arithmetic number, because the mean of its divisors is an integer number (4479193495).

Almost surely, 2^8958386989 is an apocalyptic number.

It is an amenable number.

8958386989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8958386989 is an equidigital number, since it uses as much as digits as its factorization.

8958386989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268738560, while the sum is 73.

The square root of 8958386989 is about 94648.7558766622. The cubic root of 8958386989 is about 2076.8729970983.

The spelling of 8958386989 in words is "eight billion, nine hundred fifty-eight million, three hundred eighty-six thousand, nine hundred eighty-nine".