6665028 has 12 divisors (see below), whose sum is σ = 15551760. Its totient is φ = 2221672.

The previous prime is 6665017. The next prime is 6665047. The reversal of 6665028 is 8205666.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 6665028.

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 3 ways as a sum of consecutive naturals, for example, 277698 + ... + 277721.

It is an arithmetic number, because the mean of its divisors is an integer number (1295980).

Almost surely, 2^6665028 is an apocalyptic number.

It is an amenable number.

6665028 is an abundant number, since it is smaller than the sum of its proper divisors (8886732).

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

6665028 is a wasteful number, since it uses less digits than its factorization.

6665028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555426 (or 555424 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 6665028 is about 2581.6715515340. The cubic root of 6665028 is about 188.1917840689.

The spelling of 6665028 in words is "six million, six hundred sixty-five thousand, twenty-eight".