9728197134 has 16 divisors (see below), whose sum is σ = 19522801872. Its totient is φ = 3231664448.

The previous prime is 9728197121. The next prime is 9728197169. The reversal of 9728197134 is 4317918279.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2765079 + ... + 2768594.

It is an arithmetic number, because the mean of its divisors is an integer number (1220175117).

Almost surely, 2^9728197134 is an apocalyptic number.

9728197134 is an abundant number, since it is smaller than the sum of its proper divisors (9794604738).

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

9728197134 is a wasteful number, since it uses less digits than its factorization.

9728197134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533971.

The product of its digits is 762048, while the sum is 51.

The square root of 9728197134 is about 98631.6233973668. The cubic root of 9728197134 is about 2134.7357386359.

The spelling of 9728197134 in words is "nine billion, seven hundred twenty-eight million, one hundred ninety-seven thousand, one hundred thirty-four".