825858 has 48 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 241920.

The previous prime is 825857. The next prime is 825883. The reversal of 825858 is 858528.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 825858.

It is not an unprimeable number, because it can be changed into a prime (825857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8466 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (42042).

2⁸²⁵⁸⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 825858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009008).

825858 is an abundant number, since it is smaller than the sum of its proper divisors (1192158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

825858 is a wasteful number, since it uses less digits than its factorization.

825858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 156 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 825858 is about 908.7672969468. The cubic root of 825858 is about 93.8213749794.

The spelling of 825858 in words is "eight hundred twenty-five thousand, eight hundred fifty-eight".