6649006 has 48 divisors (see below), whose sum is σ = 13272336. Its totient is φ = 2467584.

The previous prime is 6648997. The next prime is 6649007. The reversal of 6649006 is 6009466.

It is a hoax number, since the sum of its digits (31) 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 (6649007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21505 + ... + 21811.

It is an arithmetic number, because the mean of its divisors is an integer number (276507).

Almost surely, 2^6649006 is an apocalyptic number.

6649006 is a deficient number, since it is larger than the sum of its proper divisors (6623330).

6649006 is a wasteful number, since it uses less digits than its factorization.

6649006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6649006 is about 2578.5666561096. The cubic root of 6649006 is about 188.0408655694.

The spelling of 6649006 in words is "six million, six hundred forty-nine thousand, six".