871540982 has 16 divisors (see below), whose sum is σ = 1481973360. Its totient is φ = 381078432.

The previous prime is 871540961. The next prime is 871540987. The reversal of 871540982 is 289045178.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871540987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881633 + ... + 882620.

It is an arithmetic number, because the mean of its divisors is an integer number (92623335).

Almost surely, 2^871540982 is an apocalyptic number.

871540982 is a deficient number, since it is larger than the sum of its proper divisors (610432378).

871540982 is a wasteful number, since it uses less digits than its factorization.

871540982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764287.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 871540982 is about 29521.8729419392. The cubic root of 871540982 is about 955.2035720006.

The spelling of 871540982 in words is "eight hundred seventy-one million, five hundred forty thousand, nine hundred eighty-two".