6644116 has 6 divisors (see below), whose sum is σ = 11627210. Its totient is φ = 3322056.

The previous prime is 6644111. The next prime is 6644123. The reversal of 6644116 is 6114466.

It can be written as a sum of positive squares in only one way, i.e., 5779216 + 864900 = 2404^2 + 930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830511 + ... + 830518.

Almost surely, 2^6644116 is an apocalyptic number.

It is an amenable number.

6644116 is a deficient number, since it is larger than the sum of its proper divisors (4983094).

6644116 is a wasteful number, since it uses less digits than its factorization.

6644116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661033 (or 1661031 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 6644116 is about 2577.6182805063. The cubic root of 6644116 is about 187.9947561537.

The spelling of 6644116 in words is "six million, six hundred forty-four thousand, one hundred sixteen".