3937984 has 28 divisors (see below), whose sum is σ = 8030464. Its totient is φ = 1914624.

The previous prime is 3937981. The next prime is 3937993. The reversal of 3937984 is 4897393.

It is a self number, because there is not a number n which added to its sum of digits gives 3937984.

It is not an unprimeable number, because it can be changed into a prime (3937981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1537 + ... + 3199.

Almost surely, 2^3937984 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 3937984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015232).

3937984 is an abundant number, since it is smaller than the sum of its proper divisors (4092480).

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

3937984 is a wasteful number, since it uses less digits than its factorization.

3937984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1702 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 3937984 is about 1984.4354360876. The cubic root of 3937984 is about 157.9154597674.

The spelling of 3937984 in words is "three million, nine hundred thirty-seven thousand, nine hundred eighty-four".