6660744 has 16 divisors (see below), whose sum is σ = 16651920. Its totient is φ = 2220240.

The previous prime is 6660733. The next prime is 6660751. The reversal of 6660744 is 4470666.

6660744 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×6660744³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138742 + ... + 138789.

It is an arithmetic number, because the mean of its divisors is an integer number (1040745).

Almost surely, 2^6660744 is an apocalyptic number.

It is an amenable number.

6660744 is an abundant number, since it is smaller than the sum of its proper divisors (9991176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6660744 is a wasteful number, since it uses less digits than its factorization.

6660744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277540 (or 277536 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 6660744 is about 2580.8417231593. The cubic root of 6660744 is about 188.1514548360.

The spelling of 6660744 in words is "six million, six hundred sixty thousand, seven hundred forty-four".