9867216 has 40 divisors (see below), whose sum is σ = 25643200. Its totient is φ = 3269376.

The previous prime is 9867211. The next prime is 9867233. The reversal of 9867216 is 6127689.

9867216 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9867211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9036 + ... + 10068.

It is an arithmetic number, because the mean of its divisors is an integer number (641080).

Almost surely, 2^9867216 is an apocalyptic number.

It is an amenable number.

9867216 is an abundant number, since it is smaller than the sum of its proper divisors (15775984).

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

9867216 is a wasteful number, since it uses less digits than its factorization.

9867216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1237 counting only the distinct ones).

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

The square root of 9867216 is about 3141.2125047504. The cubic root of 9867216 is about 214.4856353908.

The spelling of 9867216 in words is "nine million, eight hundred sixty-seven thousand, two hundred sixteen".