8215984 has 40 divisors (see below), whose sum is σ = 18386720. Its totient is φ = 3483648.

The previous prime is 8215973. The next prime is 8215993. The reversal of 8215984 is 4895128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11872 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (459668).

Almost surely, 2^8215984 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 8215984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9193360).

8215984 is an abundant number, since it is smaller than the sum of its proper divisors (10170736).

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

8215984 is a wasteful number, since it uses less digits than its factorization.

8215984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 791 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 8215984 is about 2866.3537813745. The cubic root of 8215984 is about 201.7839077247.

The spelling of 8215984 in words is "eight million, two hundred fifteen thousand, nine hundred eighty-four".