6718446 has 48 divisors (see below), whose sum is σ = 16892928. Its totient is φ = 1890000.

The previous prime is 6718441. The next prime is 6718447. The reversal of 6718446 is 6448176.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6718446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718441) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8571 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (351936).

Almost surely, 2^6718446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6718446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8446464).

6718446 is an abundant number, since it is smaller than the sum of its proper divisors (10174482).

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

6718446 is a wasteful number, since it uses less digits than its factorization.

6718446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 834 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6718446 is about 2591.9965277755. The cubic root of 6718446 is about 188.6932118681.

The spelling of 6718446 in words is "six million, seven hundred eighteen thousand, four hundred forty-six".