6710220 has 72 divisors (see below), whose sum is σ = 22211280. Its totient is φ = 1626240.

The previous prime is 6710219. The next prime is 6710243. The reversal of 6710220 is 220176.

It is a happy number.

6710220 is digitally balanced in base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 6710193 and 6710202.

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, 286 + ... + 3674.

It is an arithmetic number, because the mean of its divisors is an integer number (308490).

Almost surely, 2^6710220 is an apocalyptic number.

6710220 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 6710220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11105640).

6710220 is an abundant number, since it is smaller than the sum of its proper divisors (15501060).

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

6710220 is a wasteful number, since it uses less digits than its factorization.

6710220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415 (or 3410 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 6710220 is about 2590.4092340787. The cubic root of 6710220 is about 188.6161690377.

Adding to 6710220 its reverse (220176), we get a palindrome (6930396).

The spelling of 6710220 in words is "six million, seven hundred ten thousand, two hundred twenty".