806006191 has 2 divisors, whose sum is σ = 806006192. Its totient is φ = 806006190.

The previous prime is 806006177. The next prime is 806006207. The reversal of 806006191 is 191600608.

It is a happy number.

806006191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806006191 - 2⁷ = 806006063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806006101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403003095 + 403003096.

It is an arithmetic number, because the mean of its divisors is an integer number (403003096).

Almost surely, 2^806006191 is an apocalyptic number.

806006191 is a deficient number, since it is larger than the sum of its proper divisors (1).

806006191 is an equidigital number, since it uses as much as digits as its factorization.

806006191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 806006191 is about 28390.2481672845. The cubic root of 806006191 is about 930.6351659760.

Adding to 806006191 its reverse (191600608), we get a palindrome (997606799).

The spelling of 806006191 in words is "eight hundred six million, six thousand, one hundred ninety-one".