80824 has 8 divisors (see below), whose sum is σ = 151560. Its totient is φ = 40408.
The previous prime is 80819. The next prime is 80831. The reversal of 80824 is 42808.
It is a tau number, because it is divible by the number of its divisors (8).
It is a junction number, because it is equal to n+sod(n) for n = 80795 and 80804.
It is a congruent number.
It is an unprimeable number.
80824 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 as a sum of consecutive naturals, namely, 5044 + ... + 5059.
It is an arithmetic number, because the mean of its divisors is an integer number (18945).
280824 is an apocalyptic number.
It is an amenable number.
80824 is a deficient number, since it is larger than the sum of its proper divisors (70736).
80824 is a wasteful number, since it uses less digits than its factorization.
80824 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10109 (or 10105 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 22.
The square root of 80824 is about 284.2956207893. The cubic root of 80824 is about 43.2361266160.
The spelling of 80824 in words is "eighty thousand, eight hundred twenty-four".
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