83591 has 2 divisors, whose sum is σ = 83592. Its totient is φ = 83590.
The previous prime is 83579. The next prime is 83597. The reversal of 83591 is 19538.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 83591 - 210 = 82567 is a prime.
It is a Chen prime.
It is a plaindrome in base 14.
It is a self number, because there is not a number n which added to its sum of digits gives 83591.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 83591.
It is not a weakly prime, because it can be changed into another prime (83597) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41795 + 41796.
It is an arithmetic number, because the mean of its divisors is an integer number (41796).
283591 is an apocalyptic number.
83591 is a deficient number, since it is larger than the sum of its proper divisors (1).
83591 is an equidigital number, since it uses as much as digits as its factorization.
83591 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1080, while the sum is 26.
The square root of 83591 is about 289.1210819017. The cubic root of 83591 is about 43.7239954306.
The spelling of 83591 in words is "eighty-three thousand, five hundred ninety-one".
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