825845 has 8 divisors (see below), whose sum is σ = 996000. Its totient is φ = 657360.

The previous prime is 825829. The next prime is 825857. The reversal of 825845 is 548528.

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

It is not a de Polignac number, because 825845 - 2⁴ = 825829 is a prime.

It is a Curzon number.

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 825845.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1406 + ... + 1904.

It is an arithmetic number, because the mean of its divisors is an integer number (124500).

2⁸²⁵⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

825845 is a deficient number, since it is larger than the sum of its proper divisors (170155).

825845 is a wasteful number, since it uses less digits than its factorization.

825845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its digits is 12800, while the sum is 32.

The square root of 825845 is about 908.7601443725. The cubic root of 825845 is about 93.8208826897.

The spelling of 825845 in words is "eight hundred twenty-five thousand, eight hundred forty-five".