858206047 has 2 divisors, whose sum is σ = 858206048. Its totient is φ = 858206046.

The previous prime is 858206023. The next prime is 858206057. The reversal of 858206047 is 740602858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 858206047 - 2⁷ = 858205919 is a prime.

It is a Chen prime.

It is equal to p_43980871 and since 858206047 and 43980871 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858206017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429103023 + 429103024.

It is an arithmetic number, because the mean of its divisors is an integer number (429103024).

Almost surely, 2^858206047 is an apocalyptic number.

858206047 is a deficient number, since it is larger than the sum of its proper divisors (1).

858206047 is an equidigital number, since it uses as much as digits as its factorization.

858206047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 858206047 is about 29295.1539849170. The cubic root of 858206047 is about 950.3068434480.

The spelling of 858206047 in words is "eight hundred fifty-eight million, two hundred six thousand, forty-seven".