6872220 has 72 divisors (see below), whose sum is σ = 21171696. Its totient is φ = 1804032.

The previous prime is 6872219. The next prime is 6872231. The reversal of 6872220 is 222786.

6872220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12879 + ... + 13401.

Almost surely, 2^6872220 is an apocalyptic number.

6872220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6872220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10585848).

6872220 is an abundant number, since it is smaller than the sum of its proper divisors (14299476).

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

6872220 is a wasteful number, since it uses less digits than its factorization.

6872220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 6872220 is about 2621.4919416241. The cubic root of 6872220 is about 190.1219899880.

The spelling of 6872220 in words is "six million, eight hundred seventy-two thousand, two hundred twenty".