9947288 has 32 divisors (see below), whose sum is σ = 20306160. Its totient is φ = 4540800.

The previous prime is 9947281. The next prime is 9947291. The reversal of 9947288 is 8827499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947281) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10031 + ... + 10977.

Almost surely, 2^9947288 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 9947288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10153080).

9947288 is an abundant number, since it is smaller than the sum of its proper divisors (10358872).

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

9947288 is a wasteful number, since it uses less digits than its factorization.

9947288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1063 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 9947288 is about 3153.9321489214. The cubic root of 9947288 is about 215.0642533756.

The spelling of 9947288 in words is "nine million, nine hundred forty-seven thousand, two hundred eighty-eight".