9739923913 has 2 divisors, whose sum is σ = 9739923914. Its totient is φ = 9739923912.

The previous prime is 9739923841. The next prime is 9739923929. The reversal of 9739923913 is 3193299379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9735374224 + 4549689 = 98668^2 + 2133^2 .

It is an emirp because it is prime and its reverse (3193299379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9739923913 - 2²⁵ = 9706369481 is a prime.

It is a super-2 number, since 2×9739923913² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9739920913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4869961956 + 4869961957.

It is an arithmetic number, because the mean of its divisors is an integer number (4869961957).

Almost surely, 2^9739923913 is an apocalyptic number.

It is an amenable number.

9739923913 is a deficient number, since it is larger than the sum of its proper divisors (1).

9739923913 is an equidigital number, since it uses as much as digits as its factorization.

9739923913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2480058, while the sum is 55.

The square root of 9739923913 is about 98691.0528518163. The cubic root of 9739923913 is about 2135.5931610262.

The spelling of 9739923913 in words is "nine billion, seven hundred thirty-nine million, nine hundred twenty-three thousand, nine hundred thirteen".