9347728 has 30 divisors (see below), whose sum is σ = 19617234. Its totient is φ = 4313088.

The previous prime is 9347707. The next prime is 9347747. The reversal of 9347728 is 8277439.

It can be written as a sum of positive squares in 3 ways, for example, as 984064 + 8363664 = 992^2 + 2892^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 976 + ... + 4432.

Almost surely, 2^9347728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9347728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9808617).

9347728 is an abundant number, since it is smaller than the sum of its proper divisors (10269506).

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

9347728 is a wasteful number, since it uses less digits than its factorization.

9347728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3472 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 9347728 is about 3057.4054359865. The cubic root of 9347728 is about 210.6535046700.

The spelling of 9347728 in words is "nine million, three hundred forty-seven thousand, seven hundred twenty-eight".