6920811 has 6 divisors (see below), whose sum is σ = 9996740. Its totient is φ = 4613868.

The previous prime is 6920803. The next prime is 6920827. The reversal of 6920811 is 1180296.

It is not a de Polignac number, because 6920811 - 2³ = 6920803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6920801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384481 + ... + 384498.

Almost surely, 2^6920811 is an apocalyptic number.

6920811 is a deficient number, since it is larger than the sum of its proper divisors (3075929).

6920811 is a wasteful number, since it uses less digits than its factorization.

6920811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768985 (or 768982 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 6920811 is about 2630.7434310476. The cubic root of 6920811 is about 190.5690327859.

The spelling of 6920811 in words is "six million, nine hundred twenty thousand, eight hundred eleven".