871245834 has 8 divisors (see below), whose sum is σ = 1742491680. Its totient is φ = 290415276.

The previous prime is 871245821. The next prime is 871245841. The reversal of 871245834 is 438542178.

It is a sphenic number, since it is the product of 3 distinct primes.

871245834 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 72603814 + ... + 72603825.

It is an arithmetic number, because the mean of its divisors is an integer number (217811460).

Almost surely, 2^871245834 is an apocalyptic number.

871245834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871245834 is a wasteful number, since it uses less digits than its factorization.

871245834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145207644.

The product of its digits is 215040, while the sum is 42.

The square root of 871245834 is about 29516.8737165710. The cubic root of 871245834 is about 955.0957330270.

The spelling of 871245834 in words is "eight hundred seventy-one million, two hundred forty-five thousand, eight hundred thirty-four".