871386853 has 4 divisors (see below), whose sum is σ = 871534188. Its totient is φ = 871239520.

The previous prime is 871386851. The next prime is 871386869. The reversal of 871386853 is 358683178.

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 5673924 + 865712929 = 2382^2 + 29423^2 .

It is a cyclic number.

It is not a de Polignac number, because 871386853 - 2¹ = 871386851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 871386797 and 871386806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871386851) 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, 64408 + ... + 76753.

It is an arithmetic number, because the mean of its divisors is an integer number (217883547).

Almost surely, 2^871386853 is an apocalyptic number.

It is an amenable number.

871386853 is a deficient number, since it is larger than the sum of its proper divisors (147335).

871386853 is a wasteful number, since it uses less digits than its factorization.

871386853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147334.

The product of its digits is 967680, while the sum is 49.

The square root of 871386853 is about 29519.2624060968. The cubic root of 871386853 is about 955.1472605347.

The spelling of 871386853 in words is "eight hundred seventy-one million, three hundred eighty-six thousand, eight hundred fifty-three".