6820767 has 12 divisors (see below), whose sum is σ = 10217480. Its totient is φ = 4547016.

The previous prime is 6820741. The next prime is 6820769. The reversal of 6820767 is 7670286.

6820767 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6820767 - 2⁸ = 6820511 is a prime.

It is a Duffinian number.

6820767 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13792 + ... + 14277.

Almost surely, 2^6820767 is an apocalyptic number.

6820767 is a deficient number, since it is larger than the sum of its proper divisors (3396713).

6820767 is an equidigital number, since it uses as much as digits as its factorization.

6820767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28084 (or 28072 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 6820767 is about 2611.6598170512. The cubic root of 6820767 is about 189.6463133937.

The spelling of 6820767 in words is "six million, eight hundred twenty thousand, seven hundred sixty-seven".