6644061 has 24 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 4265856.

The previous prime is 6644047. The next prime is 6644069. The reversal of 6644061 is 1604466.

It is not a de Polignac number, because 6644061 - 2²² = 2449757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47730 + ... + 47868.

It is an arithmetic number, because the mean of its divisors is an integer number (414960).

Almost surely, 2^6644061 is an apocalyptic number.

It is an amenable number.

6644061 is a deficient number, since it is larger than the sum of its proper divisors (3314979).

6644061 is a wasteful number, since it uses less digits than its factorization.

6644061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6644061 is about 2577.6076117206. The cubic root of 6644061 is about 187.9942374120.

The spelling of 6644061 in words is "six million, six hundred forty-four thousand, sixty-one".