6216628 has 24 divisors (see below), whose sum is σ = 12567744. Its totient is φ = 2659200.

The previous prime is 6216599. The next prime is 6216697. The reversal of 6216628 is 8266126.

It is a self number, because there is not a number n which added to its sum of digits gives 6216628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3408 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (523656).

Almost surely, 2^6216628 is an apocalyptic number.

6216628 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6216628 is an abundant number, since it is smaller than the sum of its proper divisors (6351116).

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

6216628 is a wasteful number, since it uses less digits than its factorization.

6216628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343 (or 8341 counting only the distinct ones).

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

The square root of 6216628 is about 2493.3166666110. The cubic root of 6216628 is about 183.8731403444.

The spelling of 6216628 in words is "six million, two hundred sixteen thousand, six hundred twenty-eight".