6628216 has 16 divisors (see below), whose sum is σ = 14203440. Its totient is φ = 2840640.

The previous prime is 6628201. The next prime is 6628247. The reversal of 6628216 is 6128266.

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, 59125 + ... + 59236.

It is an arithmetic number, because the mean of its divisors is an integer number (887715).

Almost surely, 2^6628216 is an apocalyptic number.

It is an amenable number.

6628216 is an abundant number, since it is smaller than the sum of its proper divisors (7575224).

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

6628216 is a wasteful number, since it uses less digits than its factorization.

6628216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118374 (or 118370 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 6628216 is about 2574.5321905154. The cubic root of 6628216 is about 187.8446732728.

It can be divided in two parts, 66 and 28216, that added together give a palindrome (28282).

The spelling of 6628216 in words is "six million, six hundred twenty-eight thousand, two hundred sixteen".