9730836809 has 2 divisors, whose sum is σ = 9730836810. Its totient is φ = 9730836808.

The previous prime is 9730836767. The next prime is 9730836881. The reversal of 9730836809 is 9086380379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9730836025 + 784 = 98645^2 + 28^2 .

It is an emirp because it is prime and its reverse (9086380379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9730836809 - 2³² = 5435869513 is a prime.

It is not a weakly prime, because it can be changed into another prime (9730836889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4865418404 + 4865418405.

It is an arithmetic number, because the mean of its divisors is an integer number (4865418405).

Almost surely, 2^9730836809 is an apocalyptic number.

It is an amenable number.

9730836809 is a deficient number, since it is larger than the sum of its proper divisors (1).

9730836809 is an equidigital number, since it uses as much as digits as its factorization.

9730836809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 9730836809 is about 98645.0039738455. The cubic root of 9730836809 is about 2134.9288028076.

The spelling of 9730836809 in words is "nine billion, seven hundred thirty million, eight hundred thirty-six thousand, eight hundred nine".