6620672 has 40 divisors (see below), whose sum is σ = 13495416. Its totient is φ = 3244032.

The previous prime is 6620629. The next prime is 6620681. The reversal of 6620672 is 2760266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34208 + ... + 34400.

Almost surely, 2^6620672 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 6620672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6747708).

6620672 is an abundant number, since it is smaller than the sum of its proper divisors (6874744).

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

6620672 is an equidigital number, since it uses as much as digits as its factorization.

6620672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 6620672 is about 2573.0666528483. The cubic root of 6620672 is about 187.7733801734.

The spelling of 6620672 in words is "six million, six hundred twenty thousand, six hundred seventy-two".