9728136 has 96 divisors (see below), whose sum is σ = 29315520. Its totient is φ = 2889600.

The previous prime is 9728129. The next prime is 9728143. The reversal of 9728136 is 6318279.

It is an interprime number because it is at equal distance from previous prime (9728129) and next prime (9728143).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 9728136.

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, 56146 + ... + 56318.

It is an arithmetic number, because the mean of its divisors is an integer number (305370).

Almost surely, 2^9728136 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 9728136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14657760).

9728136 is an abundant number, since it is smaller than the sum of its proper divisors (19587384).

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

9728136 is a wasteful number, since it uses less digits than its factorization.

9728136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 260 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9728136 is about 3118.9959923027. The cubic root of 9728136 is about 213.4731266920.

The spelling of 9728136 in words is "nine million, seven hundred twenty-eight thousand, one hundred thirty-six".