985741871 has 4 divisors (see below), whose sum is σ = 1019733000. Its totient is φ = 951750744.

The previous prime is 985741837. The next prime is 985741909. The reversal of 985741871 is 178147589.

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

It is a cyclic number.

It is not a de Polignac number, because 985741871 - 2¹⁸ = 985479727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985741811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16995521 + ... + 16995578.

It is an arithmetic number, because the mean of its divisors is an integer number (254933250).

Almost surely, 2^985741871 is an apocalyptic number.

985741871 is a deficient number, since it is larger than the sum of its proper divisors (33991129).

985741871 is a wasteful number, since it uses less digits than its factorization.

985741871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33991128.

The product of its digits is 564480, while the sum is 50.

The square root of 985741871 is about 31396.5264161499. The cubic root of 985741871 is about 995.2245214398.

The spelling of 985741871 in words is "nine hundred eighty-five million, seven hundred forty-one thousand, eight hundred seventy-one".