825799 has 8 divisors (see below), whose sum is σ = 897680. Its totient is φ = 755136.

The previous prime is 825791. The next prime is 825821. The reversal of 825799 is 997528.

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

It is a cyclic number.

It is not a de Polignac number, because 825799 - 2³ = 825791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825791) by changing a digit.

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, 1579 + ... + 2035.

It is an arithmetic number, because the mean of its divisors is an integer number (112210).

2⁸²⁵⁷⁹⁹ is an apocalyptic number.

825799 is a deficient number, since it is larger than the sum of its proper divisors (71881).

825799 is a wasteful number, since it uses less digits than its factorization.

825799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609.

The product of its digits is 45360, while the sum is 40.

The square root of 825799 is about 908.7348348116. The cubic root of 825799 is about 93.8191406998.

The spelling of 825799 in words is "eight hundred twenty-five thousand, seven hundred ninety-nine".