6705220 has 12 divisors (see below), whose sum is σ = 14081004. Its totient is φ = 2682080.

The previous prime is 6705211. The next prime is 6705227. The reversal of 6705220 is 225076.

It can be written as a sum of positive squares in 2 ways, for example, as 3378244 + 3326976 = 1838^2 + 1824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6705191 and 6705200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6705227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167611 + ... + 167650.

It is an arithmetic number, because the mean of its divisors is an integer number (1173417).

Almost surely, 2^6705220 is an apocalyptic number.

It is an amenable number.

6705220 is an abundant number, since it is smaller than the sum of its proper divisors (7375784).

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

6705220 is a wasteful number, since it uses less digits than its factorization.

6705220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335270 (or 335268 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 6705220 is about 2589.4439557558. The cubic root of 6705220 is about 188.5693094125.

The spelling of 6705220 in words is "six million, seven hundred five thousand, two hundred twenty".