8681984 has 40 divisors (see below), whose sum is σ = 17939328. Its totient is φ = 4193280.

The previous prime is 8681977. The next prime is 8681989. The reversal of 8681984 is 4891868.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8681989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15599 + ... + 16145.

Almost surely, 2^8681984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8681984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8969664).

8681984 is an abundant number, since it is smaller than the sum of its proper divisors (9257344).

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

8681984 is an equidigital number, since it uses as much as digits as its factorization.

8681984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 580 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 8681984 is about 2946.5206600328. The cubic root of 8681984 is about 205.5289453528.

The spelling of 8681984 in words is "eight million, six hundred eighty-one thousand, nine hundred eighty-four".