9609728 has 30 divisors (see below), whose sum is σ = 19341861. Its totient is φ = 4769792.

The previous prime is 9609713. The next prime is 9609749. The reversal of 9609728 is 8279069.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 9535744 + 73984 = 3088^2 + 272^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2192.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 70076 + ... + 70212.

Almost surely, 2^9609728 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 9609728

9609728 is an abundant number, since it is smaller than the sum of its proper divisors (9732133).

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

9609728 is an frugal number, since it uses more digits than its factorization.

9609728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 9609728 is about 3099.9561287218. The cubic root of 9609728 is about 212.6034780916.

The spelling of 9609728 in words is "nine million, six hundred nine thousand, seven hundred twenty-eight".