6654644 has 12 divisors (see below), whose sum is σ = 11793600. Its totient is φ = 3285048.

The previous prime is 6654643. The next prime is 6654647. The reversal of 6654644 is 4464566.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10214 + ... + 10845.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^6654644 is an apocalyptic number.

It is an amenable number.

6654644 is a deficient number, since it is larger than the sum of its proper divisors (5138956).

6654644 is a wasteful number, since it uses less digits than its factorization.

6654644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21142 (or 21140 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 6654644 is about 2579.6596674755. The cubic root of 6654644 is about 188.0940000722.

The spelling of 6654644 in words is "six million, six hundred fifty-four thousand, six hundred forty-four".