6820806 has 16 divisors (see below), whose sum is σ = 14082048. Its totient is φ = 2200200.

The previous prime is 6820783. The next prime is 6820817. The reversal of 6820806 is 6080286.

It is a congruent 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, 18150 + ... + 18521.

It is an arithmetic number, because the mean of its divisors is an integer number (880128).

Almost surely, 2^6820806 is an apocalyptic number.

6820806 is an abundant number, since it is smaller than the sum of its proper divisors (7261242).

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

6820806 is a wasteful number, since it uses less digits than its factorization.

6820806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36707.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 6820806 is about 2611.6672835566. The cubic root of 6820806 is about 189.6466748483.

It can be divided in two parts, 6820 and 806, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 6820806 in words is "six million, eight hundred twenty thousand, eight hundred six".