6682820 has 24 divisors (see below), whose sum is σ = 14162904. Its totient is φ = 2648576.

The previous prime is 6682801. The next prime is 6682843. The reversal of 6682820 is 282866.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 200704 + 6482116 = 448^2 + 2546^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 3738.

It is an arithmetic number, because the mean of its divisors is an integer number (590121).

Almost surely, 2^6682820 is an apocalyptic number.

It is an amenable number.

6682820 is an abundant number, since it is smaller than the sum of its proper divisors (7480084).

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

6682820 is a wasteful number, since it uses less digits than its factorization.

6682820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079 (or 3077 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 6682820 is about 2585.1150844788. The cubic root of 6682820 is about 188.3590918554.

The spelling of 6682820 in words is "six million, six hundred eighty-two thousand, eight hundred twenty".