8381984 has 24 divisors (see below), whose sum is σ = 17772300. Its totient is φ = 3868416.

The previous prime is 8381981. The next prime is 8381987. The reversal of 8381984 is 4891838.

It is an interprime number because it is at equal distance from previous prime (8381981) and next prime (8381987).

It can be written as a sum of positive squares in 2 ways, for example, as 7997584 + 384400 = 2828^2 + 620^2 .

It is not an unprimeable number, because it can be changed into a prime (8381981) 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 3 ways as a sum of consecutive naturals, for example, 9659 + ... + 10490.

Almost surely, 2^8381984 is an apocalyptic number.

It is an amenable number.

8381984 is an abundant number, since it is smaller than the sum of its proper divisors (9390316).

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

8381984 is a wasteful number, since it uses less digits than its factorization.

8381984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20172 (or 20164 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 8381984 is about 2895.1656256594. The cubic root of 8381984 is about 203.1338387949.

The spelling of 8381984 in words is "eight million, three hundred eighty-one thousand, nine hundred eighty-four".