8386396789 has 2 divisors, whose sum is σ = 8386396790. Its totient is φ = 8386396788.

The previous prime is 8386396787. The next prime is 8386396793. The reversal of 8386396789 is 9876936838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7317433764 + 1068963025 = 85542^2 + 32695^2 .

It is a cyclic number.

It is not a de Polignac number, because 8386396789 - 2¹ = 8386396787 is a prime.

It is a super-2 number, since 2×8386396789² (a number of 21 digits) contains 22 as substring.

Together with 8386396787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8386396787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4193198394 + 4193198395.

It is an arithmetic number, because the mean of its divisors is an integer number (4193198395).

Almost surely, 2^8386396789 is an apocalyptic number.

It is an amenable number.

8386396789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8386396789 is an equidigital number, since it uses as much as digits as its factorization.

8386396789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94058496, while the sum is 67.

The square root of 8386396789 is about 91577.2722295221. The cubic root of 8386396789 is about 2031.6947989969.

The spelling of 8386396789 in words is "eight billion, three hundred eighty-six million, three hundred ninety-six thousand, seven hundred eighty-nine".