6505984 has 40 divisors (see below), whose sum is σ = 13233528. Its totient is φ = 3194880.

The previous prime is 6505973. The next prime is 6505991. The reversal of 6505984 is 4895056.

It is a congruent number.

It is an unprimeable number.

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, 49599 + ... + 49729.

Almost surely, 2^6505984 is an apocalyptic number.

6505984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6505984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6616764).

6505984 is an abundant number, since it is smaller than the sum of its proper divisors (6727544).

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

6505984 is an equidigital number, since it uses as much as digits as its factorization.

6505984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 6505984 is about 2550.6830457742. The cubic root of 6505984 is about 186.6828103952.

The spelling of 6505984 in words is "six million, five hundred five thousand, nine hundred eighty-four".