6807820 has 24 divisors (see below), whose sum is σ = 15138144. Its totient is φ = 2562816.

The previous prime is 6807799. The next prime is 6807821. The reversal of 6807820 is 287086.

It is not an unprimeable number, because it can be changed into a prime (6807821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9672 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (630756).

Almost surely, 2^6807820 is an apocalyptic number.

It is an amenable number.

6807820 is an abundant number, since it is smaller than the sum of its proper divisors (8330324).

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

6807820 is a wasteful number, since it uses less digits than its factorization.

6807820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20049 (or 20047 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 6807820 is about 2609.1799477997. The cubic root of 6807820 is about 189.5262435140.

The spelling of 6807820 in words is "six million, eight hundred seven thousand, eight hundred twenty".