6447028 has 48 divisors (see below), whose sum is σ = 13619200. Its totient is φ = 2667168.

The previous prime is 6447017. The next prime is 6447031. The reversal of 6447028 is 8207446.

It is a congruent number.

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, 50701 + ... + 50827.

Almost surely, 2^6447028 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 6447028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6809600).

6447028 is an abundant number, since it is smaller than the sum of its proper divisors (7172172).

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

6447028 is a wasteful number, since it uses less digits than its factorization.

6447028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 6447028 is about 2539.0998404947. The cubic root of 6447028 is about 186.1172036585.

The spelling of 6447028 in words is "six million, four hundred forty-seven thousand, twenty-eight".