9818816 has 84 divisors (see below), whose sum is σ = 23628096. Its totient is φ = 4032000.

The previous prime is 9818813. The next prime is 9818827. The reversal of 9818816 is 6188189.

It is not an unprimeable number, because it can be changed into a prime (9818813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97166 + ... + 97266.

Almost surely, 2^9818816 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 9818816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11814048).

9818816 is an abundant number, since it is smaller than the sum of its proper divisors (13809280).

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

9818816 is a wasteful number, since it uses less digits than its factorization.

9818816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 141 counting only the distinct ones).

The product of its digits is 27648, while the sum is 41.

The square root of 9818816 is about 3133.4990027125. The cubic root of 9818816 is about 214.1343669505.

The spelling of 9818816 in words is "nine million, eight hundred eighteen thousand, eight hundred sixteen".