6387984 has 120 divisors (see below), whose sum is σ = 19498752. Its totient is φ = 2021760.

The previous prime is 6387977. The next prime is 6388021. The reversal of 6387984 is 4897836.

It is a happy number.

6387984 is a `hidden beast` number, since 638 + 7 + 9 + 8 + 4 = 666.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120502 + ... + 120554.

Almost surely, 2^6387984 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 6387984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9749376).

6387984 is an abundant number, since it is smaller than the sum of its proper divisors (13110768).

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

6387984 is a wasteful number, since it uses less digits than its factorization.

6387984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 89 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6387984 is about 2527.4461418594. The cubic root of 6387984 is about 185.5472861097.

The spelling of 6387984 in words is "six million, three hundred eighty-seven thousand, nine hundred eighty-four".