9809982 has 96 divisors (see below), whose sum is σ = 26889408. Its totient is φ = 2515968.

The previous prime is 9809971. The next prime is 9810001. The reversal of 9809982 is 2899089.

9809982 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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86758 + ... + 86870.

It is an arithmetic number, because the mean of its divisors is an integer number (280098).

Almost surely, 2^9809982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9809982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13444704).

9809982 is an abundant number, since it is smaller than the sum of its proper divisors (17079426).

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

9809982 is a wasteful number, since it uses less digits than its factorization.

9809982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 191 counting only the distinct ones).

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

The square root of 9809982 is about 3132.0890791930. The cubic root of 9809982 is about 214.0701287032.

The spelling of 9809982 in words is "nine million, eight hundred nine thousand, nine hundred eighty-two".