6665004 has 36 divisors (see below), whose sum is σ = 17474184. Its totient is φ = 2221344.

The previous prime is 6664997. The next prime is 6665011. The reversal of 6665004 is 4005666.

6665004 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6664997) and next prime (6665011).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457 + ... + 4400.

It is an arithmetic number, because the mean of its divisors is an integer number (485394).

Almost surely, 2^6665004 is an apocalyptic number.

It is an amenable number.

6665004 is an abundant number, since it is smaller than the sum of its proper divisors (10809180).

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

6665004 is a wasteful number, since it uses less digits than its factorization.

6665004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876 (or 6862 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6665004 is about 2581.6669033785. Note that the first 3 decimals coincide. The cubic root of 6665004 is about 188.1915581829.

The spelling of 6665004 in words is "six million, six hundred sixty-five thousand, four".