9828381 has 16 divisors (see below), whose sum is σ = 13640000. Its totient is φ = 6289920.

The previous prime is 9828367. The next prime is 9828391. The reversal of 9828381 is 1838289.

It is not a de Polignac number, because 9828381 - 2⁵ = 9828349 is a prime.

It is a super-2 number, since 2×9828381² = 193194146162322, which contains 22 as substring.

It is a Duffinian number.

9828381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9828341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7245 + ... + 8493.

It is an arithmetic number, because the mean of its divisors is an integer number (852500).

Almost surely, 2^9828381 is an apocalyptic number.

It is an amenable number.

9828381 is a deficient number, since it is larger than the sum of its proper divisors (3811619).

9828381 is a wasteful number, since it uses less digits than its factorization.

9828381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 27648, while the sum is 39.

The square root of 9828381 is about 3135.0248802840. The cubic root of 9828381 is about 214.2038773849.

The spelling of 9828381 in words is "nine million, eight hundred twenty-eight thousand, three hundred eighty-one".