9887028 has 24 divisors (see below), whose sum is σ = 23866080. Its totient is φ = 3181920.

The previous prime is 9887023. The next prime is 9887041. The reversal of 9887028 is 8207889.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13858 + ... + 14553.

It is an arithmetic number, because the mean of its divisors is an integer number (994420).

Almost surely, 2^9887028 is an apocalyptic number.

It is an amenable number.

9887028 is an abundant number, since it is smaller than the sum of its proper divisors (13979052).

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

9887028 is a wasteful number, since it uses less digits than its factorization.

9887028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28447 (or 28445 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 9887028 is about 3144.3644826896. The cubic root of 9887028 is about 214.6290918807.

The spelling of 9887028 in words is "nine million, eight hundred eighty-seven thousand, twenty-eight".