6670643 has 8 divisors (see below), whose sum is σ = 7649280. Its totient is φ = 5698440.

The previous prime is 6670637. The next prime is 6670649. The reversal of 6670643 is 3460766.

It is an interprime number because it is at equal distance from previous prime (6670637) and next prime (6670649).

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 6670643 - 2¹² = 6666547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6670649) 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, 878 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (956160).

Almost surely, 2^6670643 is an apocalyptic number.

6670643 is a deficient number, since it is larger than the sum of its proper divisors (978637).

6670643 is a wasteful number, since it uses less digits than its factorization.

6670643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 6670643 is about 2582.7587963261. The cubic root of 6670643 is about 188.2446170685.

The spelling of 6670643 in words is "six million, six hundred seventy thousand, six hundred forty-three".