3565984 has 24 divisors (see below), whose sum is σ = 7172928. Its totient is φ = 1744320.

The previous prime is 3565979. The next prime is 3566027. The reversal of 3565984 is 4895653.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (298872).

Almost surely, 2^3565984 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 3565984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586464).

3565984 is an abundant number, since it is smaller than the sum of its proper divisors (3606944).

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

3565984 is a wasteful number, since it uses less digits than its factorization.

3565984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2420 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 3565984 is about 1888.3813174251. The cubic root of 3565984 is about 152.7776398848. Note that the first 3 decimals are identical.

The spelling of 3565984 in words is "three million, five hundred sixty-five thousand, nine hundred eighty-four".