839828 has 12 divisors (see below), whose sum is σ = 1603392. Its totient is φ = 381720.

The previous prime is 839809. The next prime is 839831. The reversal of 839828 is 828938.

It is a super-2 number, since 2×839828² = 1410622139168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 839791 and 839800.

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 839828.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9500 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (133616).

2⁸³⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

839828 is a deficient number, since it is larger than the sum of its proper divisors (763564).

839828 is a wasteful number, since it uses less digits than its factorization.

839828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19102 (or 19100 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 839828 is about 916.4213004945. The cubic root of 839828 is about 94.3474391400.

The spelling of 839828 in words is "eight hundred thirty-nine thousand, eight hundred twenty-eight".