58009 has 4 divisors (see below), whose sum is σ = 66304. Its totient is φ = 49716.
The previous prime is 57991. The next prime is 58013. The reversal of 58009 is 90085.
58009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 58009 - 25 = 57977 is a prime.
58009 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (58049) 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, 4137 + ... + 4150.
It is an arithmetic number, because the mean of its divisors is an integer number (16576).
258009 is an apocalyptic number.
It is an amenable number.
58009 is a deficient number, since it is larger than the sum of its proper divisors (8295).
58009 is an equidigital number, since it uses as much as digits as its factorization.
58009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8294.
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 58009 is about 240.8505760840. The cubic root of 58009 is about 38.7107684803.
The spelling of 58009 in words is "fifty-eight thousand, nine".
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