9000009839 has 2 divisors, whose sum is σ = 9000009840. Its totient is φ = 9000009838.

The previous prime is 9000009829. The next prime is 9000009853. The reversal of 9000009839 is 9389000009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9000009839 - 2⁸ = 9000009583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9000009829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500004919 + 4500004920.

It is an arithmetic number, because the mean of its divisors is an integer number (4500004920).

Almost surely, 2^9000009839 is an apocalyptic number.

9000009839 is a deficient number, since it is larger than the sum of its proper divisors (1).

9000009839 is an equidigital number, since it uses as much as digits as its factorization.

9000009839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9000009839 is about 94868.3816611204. The cubic root of 9000009839 is about 2080.0845810496.

The spelling of 9000009839 in words is "nine billion, nine thousand, eight hundred thirty-nine".