988218 has 96 divisors (see below), whose sum is σ = 2875392. Its totient is φ = 237600.

The previous prime is 988217. The next prime is 988219. The reversal of 988218 is 812889.

988218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (988217) and next prime (988219).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 988218.

It is not an unprimeable number, because it can be changed into a prime (988213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31863 + ... + 31893.

It is an arithmetic number, because the mean of its divisors is an integer number (29952).

2⁹⁸⁸²¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437696).

988218 is an abundant number, since it is smaller than the sum of its proper divisors (1887174).

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

988218 is a wasteful number, since it uses less digits than its factorization.

988218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 77 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 988218 is about 994.0915450802. The cubic root of 988218 is about 99.6057140961.

The spelling of 988218 in words is "nine hundred eighty-eight thousand, two hundred eighteen".