6820814 has 32 divisors (see below), whose sum is σ = 13741056. Its totient is φ = 2452320.

The previous prime is 6820783. The next prime is 6820817. The reversal of 6820814 is 4180286.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820817) 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 15 ways as a sum of consecutive naturals, for example, 299 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (429408).

Almost surely, 2^6820814 is an apocalyptic number.

6820814 is an abundant number, since it is smaller than the sum of its proper divisors (6920242).

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

6820814 is a wasteful number, since it uses less digits than its factorization.

6820814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 6820814 is about 2611.6688151448. The cubic root of 6820814 is about 189.6467489927.

The spelling of 6820814 in words is "six million, eight hundred twenty thousand, eight hundred fourteen".