79828 has 12 divisors (see below), whose sum is σ = 159712. Its totient is φ = 34200.

The previous prime is 79823. The next prime is 79829. The reversal of 79828 is 82897.

It is a happy number.

79828 is an admirable number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 79793 and 79802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79823) by changing a digit.

79828 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 3 ways as a sum of consecutive naturals, for example, 1398 + ... + 1453.

2⁷⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

79828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79856).

79828 is a wasteful number, since it uses less digits than its factorization.

79828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2860 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 79828 is about 282.5384929527. The cubic root of 79828 is about 43.0577914128.

The spelling of 79828 in words is "seventy-nine thousand, eight hundred twenty-eight".