6646072 has 16 divisors (see below), whose sum is σ = 12666600. Its totient is φ = 3268320.

The previous prime is 6646049. The next prime is 6646153. The reversal of 6646072 is 2706466.

It is a congruent number.

It is an unprimeable number.

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, 6322 + ... + 7297.

Almost surely, 2^6646072 is an apocalyptic number.

It is an amenable number.

6646072 is a deficient number, since it is larger than the sum of its proper divisors (6020528).

6646072 is a wasteful number, since it uses less digits than its factorization.

6646072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13686 (or 13682 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6646072 is about 2577.9976726134. The cubic root of 6646072 is about 188.0132026340.

The spelling of 6646072 in words is "six million, six hundred forty-six thousand, seventy-two".