6622616 has 64 divisors (see below), whose sum is σ = 16692480. Its totient is φ = 2378880.

The previous prime is 6622601. The next prime is 6622619. The reversal of 6622616 is 6162266.

It is an Ulam number.

Its product of digits (5184) is a multiple of the sum of its prime factors (864).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7595 + ... + 8421.

It is an arithmetic number, because the mean of its divisors is an integer number (260820).

Almost surely, 2^6622616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8346240).

6622616 is an abundant number, since it is smaller than the sum of its proper divisors (10069864).

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

6622616 is a wasteful number, since it uses less digits than its factorization.

6622616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 860 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 6622616 is about 2573.4443844777. Note that the first 3 decimals coincide. The cubic root of 6622616 is about 187.7917567435.

The spelling of 6622616 in words is "six million, six hundred twenty-two thousand, six hundred sixteen".