825838 has 16 divisors (see below), whose sum is σ = 1393056. Its totient is φ = 364320.

The previous prime is 825829. The next prime is 825857. The reversal of 825838 is 838528.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

825838 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93 + ... + 1288.

It is an arithmetic number, because the mean of its divisors is an integer number (87066).

2⁸²⁵⁸³⁸ is an apocalyptic number.

825838 is a deficient number, since it is larger than the sum of its proper divisors (567218).

825838 is a wasteful number, since it uses less digits than its factorization.

825838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419.

The product of its digits is 15360, while the sum is 34.

The square root of 825838 is about 908.7562929631. The cubic root of 825838 is about 93.8206176084.

The spelling of 825838 in words is "eight hundred twenty-five thousand, eight hundred thirty-eight".