9730638738 has 48 divisors (see below), whose sum is σ = 22656460320. Its totient is φ = 3007179648.

The previous prime is 9730638719. The next prime is 9730638751. The reversal of 9730638738 is 8378360379.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216808 + ... + 257811.

It is an arithmetic number, because the mean of its divisors is an integer number (472009590).

Almost surely, 2^9730638738 is an apocalyptic number.

9730638738 is an abundant number, since it is smaller than the sum of its proper divisors (12925821582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9730638738 is a wasteful number, since it uses less digits than its factorization.

9730638738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474711 (or 474708 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The square root of 9730638738 is about 98644.0000101375. Note that the first 4 decimals coincide. The cubic root of 9730638738 is about 2134.9143172308.

The spelling of 9730638738 in words is "nine billion, seven hundred thirty million, six hundred thirty-eight thousand, seven hundred thirty-eight".