854939117 has 2 divisors, whose sum is σ = 854939118. Its totient is φ = 854939116.

The previous prime is 854939081. The next prime is 854939177. The reversal of 854939117 is 711939458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825930121 + 29008996 = 28739^2 + 5386^2 .

It is a cyclic number.

It is not a de Polignac number, because 854939117 - 2¹⁰ = 854938093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854939177) 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, 427469558 + 427469559.

It is an arithmetic number, because the mean of its divisors is an integer number (427469559).

Almost surely, 2^854939117 is an apocalyptic number.

It is an amenable number.

854939117 is a deficient number, since it is larger than the sum of its proper divisors (1).

854939117 is an equidigital number, since it uses as much as digits as its factorization.

854939117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 854939117 is about 29239.3419385594. The cubic root of 854939117 is about 949.0994668493.

The spelling of 854939117 in words is "eight hundred fifty-four million, nine hundred thirty-nine thousand, one hundred seventeen".