9866928 has 80 divisors (see below), whose sum is σ = 27776000. Its totient is φ = 3006720.

The previous prime is 9866903. The next prime is 9866951. The reversal of 9866928 is 8296689.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28098 + ... + 28446.

It is an arithmetic number, because the mean of its divisors is an integer number (347200).

Almost surely, 2^9866928 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 9866928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13888000).

9866928 is an abundant number, since it is smaller than the sum of its proper divisors (17909072).

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

9866928 is a wasteful number, since it uses less digits than its factorization.

9866928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 404 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 9866928 is about 3141.1666622451. The cubic root of 9866928 is about 214.4835485994.

The spelling of 9866928 in words is "nine million, eight hundred sixty-six thousand, nine hundred twenty-eight".