842293171 has 4 divisors (see below), whose sum is σ = 846526000. Its totient is φ = 838060344.

The previous prime is 842293163. The next prime is 842293211. The reversal of 842293171 is 171392248.

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 842293171 - 2³ = 842293163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842293171.

It is not an unprimeable number, because it can be changed into a prime (842293141) 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, 2116116 + ... + 2116513.

It is an arithmetic number, because the mean of its divisors is an integer number (211631500).

Almost surely, 2^842293171 is an apocalyptic number.

842293171 is a deficient number, since it is larger than the sum of its proper divisors (4232829).

842293171 is a wasteful number, since it uses less digits than its factorization.

842293171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232828.

The product of its digits is 24192, while the sum is 37.

The square root of 842293171 is about 29022.2874873777. The cubic root of 842293171 is about 944.3966253677.

The spelling of 842293171 in words is "eight hundred forty-two million, two hundred ninety-three thousand, one hundred seventy-one".