806422219 has 2 divisors, whose sum is σ = 806422220. Its totient is φ = 806422218.

The previous prime is 806422213. The next prime is 806422237. The reversal of 806422219 is 912224608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806422219 - 2¹¹ = 806420171 is a prime.

It is a super-2 number, since 2×806422219² = 1300633590593767922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (806422213) 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, 403211109 + 403211110.

It is an arithmetic number, because the mean of its divisors is an integer number (403211110).

Almost surely, 2^806422219 is an apocalyptic number.

806422219 is a deficient number, since it is larger than the sum of its proper divisors (1).

806422219 is an equidigital number, since it uses as much as digits as its factorization.

806422219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 806422219 is about 28397.5741745664. The cubic root of 806422219 is about 930.7952572574.

The spelling of 806422219 in words is "eight hundred six million, four hundred twenty-two thousand, two hundred nineteen".