6646344 has 32 divisors (see below), whose sum is σ = 16679520. Its totient is φ = 2206976.

The previous prime is 6646331. The next prime is 6646357. The reversal of 6646344 is 4436466.

It is an interprime number because it is at equal distance from previous prime (6646331) and next prime (6646357).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10912 + ... + 11504.

It is an arithmetic number, because the mean of its divisors is an integer number (521235).

Almost surely, 2^6646344 is an apocalyptic number.

It is an amenable number.

6646344 is an abundant number, since it is smaller than the sum of its proper divisors (10033176).

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

6646344 is a wasteful number, since it uses less digits than its factorization.

6646344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 6646344 is about 2578.0504261942. The cubic root of 6646344 is about 188.0157675021.

The spelling of 6646344 in words is "six million, six hundred forty-six thousand, three hundred forty-four".