6684445 has 8 divisors (see below), whose sum is σ = 8040960. Its totient is φ = 5334480.

The previous prime is 6684443. The next prime is 6684449. The reversal of 6684445 is 5444866.

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

It is not a de Polignac number, because 6684445 - 2¹ = 6684443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684443) 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, 1000 + ... + 3790.

It is an arithmetic number, because the mean of its divisors is an integer number (1005120).

Almost surely, 2^6684445 is an apocalyptic number.

It is an amenable number.

6684445 is a deficient number, since it is larger than the sum of its proper divisors (1356515).

6684445 is a wasteful number, since it uses less digits than its factorization.

6684445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275.

The product of its digits is 92160, while the sum is 37.

The square root of 6684445 is about 2585.4293647284. The cubic root of 6684445 is about 188.3743578019.

The spelling of 6684445 in words is "six million, six hundred eighty-four thousand, four hundred forty-five".