998982 has 48 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 299376.

The previous prime is 998969. The next prime is 998983. The reversal of 998982 is 289899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7803 + ... + 7929.

It is an arithmetic number, because the mean of its divisors is an integer number (49920).

2⁹⁹⁸⁹⁸² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198080).

998982 is an abundant number, since it is smaller than the sum of its proper divisors (1397178).

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

998982 is a wasteful number, since it uses less digits than its factorization.

998982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 174 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 998982 is about 999.4908703935. The cubic root of 998982 is about 99.9660551454.

The spelling of 998982 in words is "nine hundred ninety-eight thousand, nine hundred eighty-two".