9730638735 has 64 divisors (see below), whose sum is σ = 15982686720. Its totient is φ = 5054400000.

The previous prime is 9730638719. The next prime is 9730638751. The reversal of 9730638735 is 5378360379.

It is a happy number.

It is a Cunningham number, because it is equal to 98644²-1.

It is an interprime number because it is at equal distance from previous prime (9730638719) and next prime (9730638751).

It is not a de Polignac number, because 9730638735 - 2⁴ = 9730638719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38767360 + ... + 38767610.

It is an arithmetic number, because the mean of its divisors is an integer number (249729480).

Almost surely, 2^9730638735 is an apocalyptic number.

9730638735 is a deficient number, since it is larger than the sum of its proper divisors (6252047985).

9730638735 is a wasteful number, since it uses less digits than its factorization.

9730638735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 2857680, while the sum is 51.

The square root of 9730638735 is about 98643.9999949313. Note that the first 5 decimals coincide. The cubic root of 9730638735 is about 2134.9143170114.

The spelling of 9730638735 in words is "nine billion, seven hundred thirty million, six hundred thirty-eight thousand, seven hundred thirty-five".