871935485 has 4 divisors (see below), whose sum is σ = 1046322588. Its totient is φ = 697548384.

The previous prime is 871935473. The next prime is 871935499. The reversal of 871935485 is 584539178.

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 511619161 + 360316324 = 22619^2 + 18982^2 .

It is a cyclic number.

It is not a de Polignac number, because 871935485 - 2¹⁰ = 871934461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87193544 + ... + 87193553.

It is an arithmetic number, because the mean of its divisors is an integer number (261580647).

Almost surely, 2^871935485 is an apocalyptic number.

It is an amenable number.

871935485 is a deficient number, since it is larger than the sum of its proper divisors (174387103).

871935485 is a wasteful number, since it uses less digits than its factorization.

871935485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174387102.

The product of its digits is 1209600, while the sum is 50.

The square root of 871935485 is about 29528.5537234725. The cubic root of 871935485 is about 955.3476745497.

The spelling of 871935485 in words is "eight hundred seventy-one million, nine hundred thirty-five thousand, four hundred eighty-five".