9308085989 has 2 divisors, whose sum is σ = 9308085990. Its totient is φ = 9308085988.

The previous prime is 9308085911. The next prime is 9308086003. The reversal of 9308085989 is 9895808039.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9304145764 + 3940225 = 96458^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 9308085989 - 2¹⁶ = 9308020453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9308085289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4654042994 + 4654042995.

It is an arithmetic number, because the mean of its divisors is an integer number (4654042995).

Almost surely, 2^9308085989 is an apocalyptic number.

It is an amenable number.

9308085989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9308085989 is an equidigital number, since it uses as much as digits as its factorization.

9308085989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The square root of 9308085989 is about 96478.4224010737. The cubic root of 9308085989 is about 2103.5530168854.

The spelling of 9308085989 in words is "nine billion, three hundred eight million, eighty-five thousand, nine hundred eighty-nine".