58809 has 4 divisors (see below), whose sum is σ = 78416. Its totient is φ = 39204.

The previous prime is 58789. The next prime is 58831. The reversal of 58809 is 90885.

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 not a de Polignac number, because 58809 - 2¹² = 54713 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 58809.

It is not an unprimeable number, because it can be changed into a prime (58889) 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, 9799 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (19604).

2⁵⁸⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

58809 is a deficient number, since it is larger than the sum of its proper divisors (19607).

58809 is a wasteful number, since it uses less digits than its factorization.

58809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19606.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 58809 is about 242.5056700368. The cubic root of 58809 is about 38.8879095747.

The spelling of 58809 in words is "fifty-eight thousand, eight hundred nine".