6670641 has 8 divisors (see below), whose sum is σ = 8920800. Its totient is φ = 4433792.

The previous prime is 6670637. The next prime is 6670649. The reversal of 6670641 is 1460766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6670641 - 2² = 6670637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6670599 and 6670608.

It is not an unprimeable number, because it can be changed into a prime (6670649) by changing a digit.

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, 2091 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (1115100).

Almost surely, 2^6670641 is an apocalyptic number.

It is an amenable number.

6670641 is a deficient number, since it is larger than the sum of its proper divisors (2250159).

6670641 is a wasteful number, since it uses less digits than its factorization.

6670641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6670641 is about 2582.7584091432. The cubic root of 6670641 is about 188.2445982553.

It can be divided in two parts, 66 and 70641, that added together give a palindrome (70707).

The spelling of 6670641 in words is "six million, six hundred seventy thousand, six hundred forty-one".