9126728 has 32 divisors (see below), whose sum is σ = 18600960. Its totient is φ = 4173120.

The previous prime is 9126713. The next prime is 9126743. The reversal of 9126728 is 8276219.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9126713) and next prime (9126743).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12863 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (581280).

Almost surely, 2^9126728 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 9126728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9300480).

9126728 is an abundant number, since it is smaller than the sum of its proper divisors (9474232).

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

9126728 is a wasteful number, since it uses less digits than its factorization.

9126728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 833 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 9126728 is about 3021.0475004541. The cubic root of 9126728 is about 208.9801496680.

The spelling of 9126728 in words is "nine million, one hundred twenty-six thousand, seven hundred twenty-eight".