806220847 has 2 divisors, whose sum is σ = 806220848. Its totient is φ = 806220846.

The previous prime is 806220809. The next prime is 806220853. The reversal of 806220847 is 748022608.

806220847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 806220847 - 2⁷ = 806220719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806220887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403110423 + 403110424.

It is an arithmetic number, because the mean of its divisors is an integer number (403110424).

Almost surely, 2^806220847 is an apocalyptic number.

806220847 is a deficient number, since it is larger than the sum of its proper divisors (1).

806220847 is an equidigital number, since it uses as much as digits as its factorization.

806220847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 806220847 is about 28394.0283686553. The cubic root of 806220847 is about 930.7177743947.

The spelling of 806220847 in words is "eight hundred six million, two hundred twenty thousand, eight hundred forty-seven".