6649626 has 16 divisors (see below), whose sum is σ = 13624128. Its totient is φ = 2162400.

The previous prime is 6649609. The next prime is 6649627. The reversal of 6649626 is 6269466.

It is not an unprimeable number, because it can be changed into a prime (6649627) 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 7 ways as a sum of consecutive naturals, for example, 13270 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (851508).

Almost surely, 2^6649626 is an apocalyptic number.

6649626 is an abundant number, since it is smaller than the sum of its proper divisors (6974502).

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

6649626 is a wasteful number, since it uses less digits than its factorization.

6649626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27077.

The product of its digits is 93312, while the sum is 39.

The square root of 6649626 is about 2578.6868751363. The cubic root of 6649626 is about 188.0467101379.

The spelling of 6649626 in words is "six million, six hundred forty-nine thousand, six hundred twenty-six".