825834 has 8 divisors (see below), whose sum is σ = 1651680. Its totient is φ = 275276.

The previous prime is 825829. The next prime is 825857. The reversal of 825834 is 438528.

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

825834 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 825834.

It is an unprimeable 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, 68814 + ... + 68825.

It is an arithmetic number, because the mean of its divisors is an integer number (206460).

2⁸²⁵⁸³⁴ is an apocalyptic number.

825834 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.

825834 is a wasteful number, since it uses less digits than its factorization.

825834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137644.

The product of its digits is 7680, while the sum is 30.

The square root of 825834 is about 908.7540921503. The cubic root of 825834 is about 93.8204661328.

The spelling of 825834 in words is "eight hundred twenty-five thousand, eight hundred thirty-four".