6670321 has 8 divisors (see below), whose sum is σ = 7779200. Its totient is φ = 5717124.

The previous prime is 6670309. The next prime is 6670327. The reversal of 6670321 is 1230766.

It is not a de Polignac number, because 6670321 - 2⁹ = 6669809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6670327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9381 + ... + 10066.

It is an arithmetic number, because the mean of its divisors is an integer number (972400).

Almost surely, 2^6670321 is an apocalyptic number.

It is an amenable number.

6670321 is a deficient number, since it is larger than the sum of its proper divisors (1108879).

6670321 is an equidigital number, since it uses as much as digits as its factorization.

6670321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19468 (or 19454 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 6670321 is about 2582.6964591295. The cubic root of 6670321 is about 188.2415880880.

The spelling of 6670321 in words is "six million, six hundred seventy thousand, three hundred twenty-one".