862838 has 16 divisors (see below), whose sum is σ = 1351680. Its totient is φ = 412776.

The previous prime is 862819. The next prime is 862861. The reversal of 862838 is 838268.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

862838 is a modest number, since divided by 2838 gives 86 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 862798 and 862807.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 862838.

It is an unprimeable number.

862838 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 7 ways as a sum of consecutive naturals, for example, 6731 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (84480).

2⁸⁶²⁸³⁸ is an apocalyptic number.

862838 is a deficient number, since it is larger than the sum of its proper divisors (488842).

862838 is a wasteful number, since it uses less digits than its factorization.

862838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its digits is 18432, while the sum is 35.

The square root of 862838 is about 928.8907363086. The cubic root of 862838 is about 95.2013458134.

The spelling of 862838 in words is "eight hundred sixty-two thousand, eight hundred thirty-eight".