9128385 has 24 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 4172832.

The previous prime is 9128377. The next prime is 9128407. The reversal of 9128385 is 5838219.

9128385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9128385 - 2³ = 9128377 is a prime.

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, 14175 + ... + 14804.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^9128385 is an apocalyptic number.

It is an amenable number.

9128385 is a deficient number, since it is larger than the sum of its proper divisors (8955135).

9128385 is a wasteful number, since it uses less digits than its factorization.

9128385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28997 (or 28994 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 9128385 is about 3021.3217306338. The cubic root of 9128385 is about 208.9927960094.

The spelling of 9128385 in words is "nine million, one hundred twenty-eight thousand, three hundred eighty-five".