825684 has 24 divisors (see below), whose sum is σ = 1952160. Its totient is φ = 271584.

The previous prime is 825679. The next prime is 825689. The reversal of 825684 is 486528.

It is an interprime number because it is at equal distance from previous prime (825679) and next prime (825689).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (81340).

2⁸²⁵⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

825684 is an abundant number, since it is smaller than the sum of its proper divisors (1126476).

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

825684 is a wasteful number, since it uses less digits than its factorization.

825684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 825684 is about 908.6715578249. The cubic root of 825684 is about 93.8147854423.

The spelling of 825684 in words is "eight hundred twenty-five thousand, six hundred eighty-four".