9489084989 has 2 divisors, whose sum is σ = 9489084990. Its totient is φ = 9489084988.

The previous prime is 9489084961. The next prime is 9489085003. The reversal of 9489084989 is 9894809849.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6335364025 + 3153720964 = 79595^2 + 56158^2 .

It is a cyclic number.

It is not a de Polignac number, because 9489084989 - 2⁸ = 9489084733 is a prime.

It is a super-3 number, since 3×9489084989³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9489089989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4744542494 + 4744542495.

It is an arithmetic number, because the mean of its divisors is an integer number (4744542495).

Almost surely, 2^9489084989 is an apocalyptic number.

It is an amenable number.

9489084989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9489084989 is an equidigital number, since it uses as much as digits as its factorization.

9489084989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53747712, while the sum is 68.

The square root of 9489084989 is about 97411.9345306313. The cubic root of 9489084989 is about 2117.1003574050.

The spelling of 9489084989 in words is "nine billion, four hundred eighty-nine million, eighty-four thousand, nine hundred eighty-nine".