9866124 has 60 divisors (see below), whose sum is σ = 26521264. Its totient is φ = 3195936.

The previous prime is 9866107. The next prime is 9866147. The reversal of 9866124 is 4216689.

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

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 19 ways as a sum of consecutive naturals, for example, 11577 + ... + 12399.

Almost surely, 2^9866124 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 9866124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13260632).

9866124 is an abundant number, since it is smaller than the sum of its proper divisors (16655140).

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

9866124 is a wasteful number, since it uses less digits than its factorization.

9866124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 865 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 9866124 is about 3141.0386817102. The cubic root of 9866124 is about 214.4777227586.

The spelling of 9866124 in words is "nine million, eight hundred sixty-six thousand, one hundred twenty-four".