858673117 has 2 divisors, whose sum is σ = 858673118. Its totient is φ = 858673116.

The previous prime is 858673069. The next prime is 858673121. The reversal of 858673117 is 711376858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453093796 + 405579321 = 21286^2 + 20139^2 .

It is a cyclic number.

It is not a de Polignac number, because 858673117 - 2¹⁹ = 858148829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858673147) 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, 429336558 + 429336559.

It is an arithmetic number, because the mean of its divisors is an integer number (429336559).

Almost surely, 2^858673117 is an apocalyptic number.

It is an amenable number.

858673117 is a deficient number, since it is larger than the sum of its proper divisors (1).

858673117 is an equidigital number, since it uses as much as digits as its factorization.

858673117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 46.

The square root of 858673117 is about 29303.1246968647. The cubic root of 858673117 is about 950.4792104924.

The spelling of 858673117 in words is "eight hundred fifty-eight million, six hundred seventy-three thousand, one hundred seventeen".