6875220 has 72 divisors (see below), whose sum is σ = 21182112. Its totient is φ = 1664960.

The previous prime is 6875203. The next prime is 6875221. The reversal of 6875220 is 225786.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6875221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6787 + ... + 7733.

It is an arithmetic number, because the mean of its divisors is an integer number (294196).

Almost surely, 2^6875220 is an apocalyptic number.

6875220 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 6875220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10591056).

6875220 is an abundant number, since it is smaller than the sum of its proper divisors (14306892).

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

6875220 is a wasteful number, since it uses less digits than its factorization.

6875220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 6875220 is about 2622.0640724437. The cubic root of 6875220 is about 190.1496512577.

The spelling of 6875220 in words is "six million, eight hundred seventy-five thousand, two hundred twenty".