6644041 has 4 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 6635284.

The previous prime is 6644023. The next prime is 6644047. The reversal of 6644041 is 1404466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6644041 - 2²¹ = 4546889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6643997 and 6644015.

It is not an unprimeable number, because it can be changed into a prime (6644047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121 + ... + 4798.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^6644041 is an apocalyptic number.

It is an amenable number.

6644041 is a deficient number, since it is larger than the sum of its proper divisors (8759).

6644041 is an equidigital number, since it uses as much as digits as its factorization.

6644041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6644041 is about 2577.6037321512. The cubic root of 6644041 is about 187.9940487780.

The spelling of 6644041 in words is "six million, six hundred forty-four thousand, forty-one".