6646412 has 24 divisors (see below), whose sum is σ = 12002256. Its totient is φ = 3219008.

The previous prime is 6646403. The next prime is 6646417. The reversal of 6646412 is 2146466.

It is not an unprimeable number, because it can be changed into a prime (6646417) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22538 + ... + 22830.

It is an arithmetic number, because the mean of its divisors is an integer number (500094).

Almost surely, 2^6646412 is an apocalyptic number.

It is an amenable number.

6646412 is a deficient number, since it is larger than the sum of its proper divisors (5355844).

6646412 is a wasteful number, since it uses less digits than its factorization.

6646412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 6646412 is about 2578.0636144207. The cubic root of 6646412 is about 188.0164087081.

The spelling of 6646412 in words is "six million, six hundred forty-six thousand, four hundred twelve".