6665824 has 48 divisors (see below), whose sum is σ = 14832720. Its totient is φ = 2920960.

The previous prime is 6665803. The next prime is 6665831. The reversal of 6665824 is 4285666.

6665824 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9882 + ... + 10534.

It is an arithmetic number, because the mean of its divisors is an integer number (309015).

Almost surely, 2^6665824 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 6665824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7416360).

6665824 is an abundant number, since it is smaller than the sum of its proper divisors (8166896).

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

6665824 is a wasteful number, since it uses less digits than its factorization.

6665824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 695 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 6665824 is about 2581.8257106164. The cubic root of 6665824 is about 188.1992756451.

The spelling of 6665824 in words is "six million, six hundred sixty-five thousand, eight hundred twenty-four".