806408843 has 2 divisors, whose sum is σ = 806408844. Its totient is φ = 806408842.

The previous prime is 806408839. The next prime is 806408861. The reversal of 806408843 is 348804608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806408843 - 2² = 806408839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 806408843.

It is not a weakly prime, because it can be changed into another prime (806408803) 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 as a sum of consecutive naturals, namely, 403204421 + 403204422.

It is an arithmetic number, because the mean of its divisors is an integer number (403204422).

Almost surely, 2^806408843 is an apocalyptic number.

806408843 is a deficient number, since it is larger than the sum of its proper divisors (1).

806408843 is an equidigital number, since it uses as much as digits as its factorization.

806408843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 806408843 is about 28397.3386605154. The cubic root of 806408843 is about 930.7901109102.

The spelling of 806408843 in words is "eight hundred six million, four hundred eight thousand, eight hundred forty-three".