862842 has 8 divisors (see below), whose sum is σ = 1725696. Its totient is φ = 287612.

The previous prime is 862819. The next prime is 862861. The reversal of 862842 is 248268.

It is a happy number.

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

862842 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71898 + ... + 71909.

It is an arithmetic number, because the mean of its divisors is an integer number (215712).

2⁸⁶²⁸⁴² is an apocalyptic number.

862842 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.

862842 is a wasteful number, since it uses less digits than its factorization.

862842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143812.

The product of its digits is 6144, while the sum is 30.

The square root of 862842 is about 928.8928894119. The cubic root of 862842 is about 95.2014929267.

The spelling of 862842 in words is "eight hundred sixty-two thousand, eight hundred forty-two".