80287 has 2 divisors, whose sum is σ = 80288. Its totient is φ = 80286.
The previous prime is 80279. The next prime is 80309. The reversal of 80287 is 78208.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80287 - 23 = 80279 is a prime.
80287 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80207) by changing a digit.
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 as a sum of consecutive naturals, namely, 40143 + 40144.
It is an arithmetic number, because the mean of its divisors is an integer number (40144).
280287 is an apocalyptic number.
80287 is a deficient number, since it is larger than the sum of its proper divisors (1).
80287 is an equidigital number, since it uses as much as digits as its factorization.
80287 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 896, while the sum is 25.
The square root of 80287 is about 283.3496073758. The cubic root of 80287 is about 43.1401592019.
The spelling of 80287 in words is "eighty thousand, two hundred eighty-seven".
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