80828 has 18 divisors (see below), whose sum is σ = 156408. Its totient is φ = 36520.

The previous prime is 80819. The next prime is 80831. The reversal of 80828 is 82808.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 80797 and 80806.

It is a congruent number.

It is an unprimeable number.

80828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 401 + ... + 567.

2⁸⁰⁸²⁸ is an apocalyptic number.

It is an amenable number.

80828 is a deficient number, since it is larger than the sum of its proper divisors (75580).

80828 is a wasteful number, since it uses less digits than its factorization.

80828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 80828 is about 284.3026556330. The cubic root of 80828 is about 43.2368398598.

The spelling of 80828 in words is "eighty thousand, eight hundred twenty-eight".