981882 has 80 divisors (see below), whose sum is σ = 2613600. Its totient is φ = 272160.

The previous prime is 981823. The next prime is 981887. The reversal of 981882 is 288189.

It is an Ulam number.

Its product of digits (9216) is a multiple of the sum of its prime divisors (64).

It is not an unprimeable number, because it can be changed into a prime (981887) by changing a digit.

981882 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33844 + ... + 33872.

It is an arithmetic number, because the mean of its divisors is an integer number (32670).

2⁹⁸¹⁸⁸² is an apocalyptic number.

981882 is the 627-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306800).

981882 is an abundant number, since it is smaller than the sum of its proper divisors (1631718).

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

981882 is a wasteful number, since it uses less digits than its factorization.

981882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 64 counting only the distinct ones).

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

The square root of 981882 is about 990.8995912806. The cubic root of 981882 is about 99.3923821499.

The spelling of 981882 in words is "nine hundred eighty-one thousand, eight hundred eighty-two".