9981382 has 8 divisors (see below), whose sum is σ = 14990256. Its totient is φ = 4984632.

The previous prime is 9981373. The next prime is 9981383. The reversal of 9981382 is 2831899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (1873782).

Almost surely, 2^9981382 is an apocalyptic number.

9981382 is a deficient number, since it is larger than the sum of its proper divisors (5008874).

9981382 is a wasteful number, since it uses less digits than its factorization.

9981382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062.

The product of its digits is 31104, while the sum is 40.

The square root of 9981382 is about 3159.3325244425. The cubic root of 9981382 is about 215.3096817236.

The spelling of 9981382 in words is "nine million, nine hundred eighty-one thousand, three hundred eighty-two".