6706820 has 12 divisors (see below), whose sum is σ = 14084364. Its totient is φ = 2682720.

The previous prime is 6706811. The next prime is 6706841. The reversal of 6706820 is 286076.

It can be written as a sum of positive squares in 2 ways, for example, as 5271616 + 1435204 = 2296^2 + 1198^2 .

It is an Ulam 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, 167651 + ... + 167690.

It is an arithmetic number, because the mean of its divisors is an integer number (1173697).

Almost surely, 2^6706820 is an apocalyptic number.

It is an amenable number.

6706820 is an abundant number, since it is smaller than the sum of its proper divisors (7377544).

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

6706820 is a wasteful number, since it uses less digits than its factorization.

6706820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335350 (or 335348 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 6706820 is about 2589.7528839640. The cubic root of 6706820 is about 188.5843070263.

The spelling of 6706820 in words is "six million, seven hundred six thousand, eight hundred twenty".