6479784 has 64 divisors (see below), whose sum is σ = 18216000. Its totient is φ = 2134080.

The previous prime is 6479747. The next prime is 6479791. The reversal of 6479784 is 4879746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28182 + ... + 28410.

It is an arithmetic number, because the mean of its divisors is an integer number (284625).

Almost surely, 2^6479784 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 6479784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9108000).

6479784 is an abundant number, since it is smaller than the sum of its proper divisors (11736216).

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

6479784 is a wasteful number, since it uses less digits than its factorization.

6479784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 365 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 6479784 is about 2545.5419855111. The cubic root of 6479784 is about 186.4318788459.

The spelling of 6479784 in words is "six million, four hundred seventy-nine thousand, seven hundred eighty-four".