8099000009 has 2 divisors, whose sum is σ = 8099000010. Its totient is φ = 8099000008.

The previous prime is 8098999963. The next prime is 8099000057. The reversal of 8099000009 is 9000009908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5538336400 + 2560663609 = 74420^2 + 50603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8099000009 is a prime.

It is a super-2 number, since 2×8099000009² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8099000099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049500004 + 4049500005.

It is an arithmetic number, because the mean of its divisors is an integer number (4049500005).

Almost surely, 2^8099000009 is an apocalyptic number.

It is an amenable number.

8099000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8099000009 is an equidigital number, since it uses as much as digits as its factorization.

8099000009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 8099000009 is about 89994.4443229692. Note that the first 3 decimals coincide. The cubic root of 8099000009 is about 2008.2162015459.

The spelling of 8099000009 in words is "eight billion, ninety-nine million, nine", and thus it is an aban number and an uban number.