9930673309 has 2 divisors, whose sum is σ = 9930673310. Its totient is φ = 9930673308.

The previous prime is 9930673271. The next prime is 9930673367. The reversal of 9930673309 is 9033760399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9909605209 + 21068100 = 99547^2 + 4590^2 .

It is an emirp because it is prime and its reverse (9033760399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9930673309 - 2¹⁵ = 9930640541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9930673409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4965336654 + 4965336655.

It is an arithmetic number, because the mean of its divisors is an integer number (4965336655).

Almost surely, 2^9930673309 is an apocalyptic number.

It is an amenable number.

9930673309 is a deficient number, since it is larger than the sum of its proper divisors (1).

9930673309 is an equidigital number, since it uses as much as digits as its factorization.

9930673309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 826686, while the sum is 49.

The square root of 9930673309 is about 99652.7636796893. The cubic root of 9930673309 is about 2149.4444794434. Note that the first 4 decimals are identical.

The spelling of 9930673309 in words is "nine billion, nine hundred thirty million, six hundred seventy-three thousand, three hundred nine".