6705644 has 24 divisors (see below), whose sum is σ = 12873168. Its totient is φ = 3031040.

The previous prime is 6705619. The next prime is 6705649. The reversal of 6705644 is 4465076.

It is a super-2 number, since 2×6705644² = 89931322909472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6705644.

It is not an unprimeable number, because it can be changed into a prime (6705649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11012 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (536382).

Almost surely, 2^6705644 is an apocalyptic number.

It is an amenable number.

6705644 is a deficient number, since it is larger than the sum of its proper divisors (6167524).

6705644 is a wasteful number, since it uses less digits than its factorization.

6705644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 6705644 is about 2589.5258253201. The cubic root of 6705644 is about 188.5732840125.

The spelling of 6705644 in words is "six million, seven hundred five thousand, six hundred forty-four".