9947028 has 48 divisors (see below), whose sum is σ = 28568960. Its totient is φ = 2623104.

The previous prime is 9947011. The next prime is 9947039. The reversal of 9947028 is 8207499.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3463 + ... + 5646.

Almost surely, 2^9947028 is an apocalyptic number.

It is an amenable number.

9947028 is an abundant number, since it is smaller than the sum of its proper divisors (18621932).

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

9947028 is a wasteful number, since it uses less digits than its factorization.

9947028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9136 (or 9134 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9947028 is about 3153.8909302638. The cubic root of 9947028 is about 215.0623795920.

The spelling of 9947028 in words is "nine million, nine hundred forty-seven thousand, twenty-eight".