842086 has 8 divisors (see below), whose sum is σ = 1443600. Its totient is φ = 360888.

The previous prime is 842081. The next prime is 842087. The reversal of 842086 is 680248.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842081) by changing a digit.

842086 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30061 + ... + 30088.

It is an arithmetic number, because the mean of its divisors is an integer number (180450).

2⁸⁴²⁰⁸⁶ is an apocalyptic number.

842086 is a deficient number, since it is larger than the sum of its proper divisors (601514).

842086 is a wasteful number, since it uses less digits than its factorization.

842086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60158.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 842086 is about 917.6524396524. The cubic root of 842086 is about 94.4319190874.

The spelling of 842086 in words is "eight hundred forty-two thousand, eighty-six".