80023 has 4 divisors (see below), whose sum is σ = 81928. Its totient is φ = 78120.
The previous prime is 80021. The next prime is 80039. The reversal of 80023 is 32008.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80023 - 21 = 80021 is a prime.
It is a Duffinian number.
80023 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 79985 and 80012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888 + ... + 973.
It is an arithmetic number, because the mean of its divisors is an integer number (20482).
280023 is an apocalyptic number.
80023 is a deficient number, since it is larger than the sum of its proper divisors (1905).
80023 is a wasteful number, since it uses less digits than its factorization.
80023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1904.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 80023 is about 282.8833681926. The cubic root of 80023 is about 43.0928227381.
The spelling of 80023 in words is "eighty thousand, twenty-three".
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