9730638719 has 2 divisors, whose sum is σ = 9730638720. Its totient is φ = 9730638718.

The previous prime is 9730638707. The next prime is 9730638751. The reversal of 9730638719 is 9178360379.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9178360379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9730638719 - 2¹⁶ = 9730573183 is a prime.

It is a super-2 number, since 2×9730638719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9730638119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4865319359 + 4865319360.

It is an arithmetic number, because the mean of its divisors is an integer number (4865319360).

Almost surely, 2^9730638719 is an apocalyptic number.

9730638719 is a deficient number, since it is larger than the sum of its proper divisors (1).

9730638719 is an equidigital number, since it uses as much as digits as its factorization.

9730638719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 9730638719 is about 98643.9999138316. Note that the first 4 decimals coincide. The cubic root of 9730638719 is about 2134.9143158413.

The spelling of 9730638719 in words is "nine billion, seven hundred thirty million, six hundred thirty-eight thousand, seven hundred nineteen".