9645128 has 16 divisors (see below), whose sum is σ = 18187260. Its totient is φ = 4795200.

The previous prime is 9645113. The next prime is 9645131. The reversal of 9645128 is 8215469.

9645128 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9597604 + 47524 = 3098^2 + 218^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883 + ... + 4778.

Almost surely, 2^9645128 is an apocalyptic number.

It is an amenable number.

9645128 is a deficient number, since it is larger than the sum of its proper divisors (8542132).

9645128 is a wasteful number, since it uses less digits than its factorization.

9645128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848 (or 6844 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 9645128 is about 3105.6606382540. The cubic root of 9645128 is about 212.8642187511.

The spelling of 9645128 in words is "nine million, six hundred forty-five thousand, one hundred twenty-eight".