854570813 has 2 divisors, whose sum is σ = 854570814. Its totient is φ = 854570812.

The previous prime is 854570747. The next prime is 854570837. The reversal of 854570813 is 318075458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 846402649 + 8168164 = 29093^2 + 2858^2 .

It is a cyclic number.

It is not a de Polignac number, because 854570813 - 2⁸ = 854570557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854570113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427285406 + 427285407.

It is an arithmetic number, because the mean of its divisors is an integer number (427285407).

Almost surely, 2^854570813 is an apocalyptic number.

It is an amenable number.

854570813 is a deficient number, since it is larger than the sum of its proper divisors (1).

854570813 is an equidigital number, since it uses as much as digits as its factorization.

854570813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 854570813 is about 29233.0431703578. The cubic root of 854570813 is about 948.9631579859.

The spelling of 854570813 in words is "eight hundred fifty-four million, five hundred seventy thousand, eight hundred thirteen".