854275985 has 4 divisors (see below), whose sum is σ = 1025131188. Its totient is φ = 683420784.

The previous prime is 854275973. The next prime is 854275987. The reversal of 854275985 is 589572458.

It is a Cunningham number, because it is equal to 29228²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307511296 + 546764689 = 17536^2 + 23383^2 .

It is a cyclic number.

It is not a de Polignac number, because 854275985 - 2⁶ = 854275921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854275987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85427594 + ... + 85427603.

It is an arithmetic number, because the mean of its divisors is an integer number (256282797).

Almost surely, 2^854275985 is an apocalyptic number.

It is an amenable number.

854275985 is a deficient number, since it is larger than the sum of its proper divisors (170855203).

854275985 is a wasteful number, since it uses less digits than its factorization.

854275985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170855202.

The product of its digits is 4032000, while the sum is 53.

The square root of 854275985 is about 29228.0000171069. Note that the first 4 decimals coincide. The cubic root of 854275985 is about 948.8540142743.

The spelling of 854275985 in words is "eight hundred fifty-four million, two hundred seventy-five thousand, nine hundred eighty-five".