8320811 has 2 divisors, whose sum is σ = 8320812. Its totient is φ = 8320810.

The previous prime is 8320789. The next prime is 8320813. The reversal of 8320811 is 1180238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8320811 - 2⁶ = 8320747 is a prime.

Together with 8320813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8320813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160405 + 4160406.

It is an arithmetic number, because the mean of its divisors is an integer number (4160406).

Almost surely, 2^8320811 is an apocalyptic number.

8320811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8320811 is an equidigital number, since it uses as much as digits as its factorization.

8320811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8320811 is about 2884.5815987765. The cubic root of 8320811 is about 202.6384644626.

The spelling of 8320811 in words is "eight million, three hundred twenty thousand, eight hundred eleven".