6665328 has 100 divisors (see below), whose sum is σ = 19955320. Its totient is φ = 2146176.

The previous prime is 6665317. The next prime is 6665339. The reversal of 6665328 is 8235666.

It is an interprime number because it is at equal distance from previous prime (6665317) and next prime (6665339).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6665292 and 6665301.

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 19 ways as a sum of consecutive naturals, for example, 47883 + ... + 48021.

Almost surely, 2^6665328 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 6665328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9977660).

6665328 is an abundant number, since it is smaller than the sum of its proper divisors (13289992).

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

6665328 is a wasteful number, since it uses less digits than its factorization.

6665328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 181 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 6665328 is about 2581.7296527716. The cubic root of 6665328 is about 188.1946075973.

The spelling of 6665328 in words is "six million, six hundred sixty-five thousand, three hundred twenty-eight".