58409 has 4 divisors (see below), whose sum is σ = 62916. Its totient is φ = 53904.

The previous prime is 58403. The next prime is 58411. The reversal of 58409 is 90485.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90485 = 5 ⋅18097.

It can be written as a sum of positive squares in 2 ways, for example, as 38809 + 19600 = 197^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 58409 - 2⁴ = 58393 is a prime.

It is a super-2 number, since 2×58409² = 6823222562, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (58403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (15729).

2⁵⁸⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

58409 is a deficient number, since it is larger than the sum of its proper divisors (4507).

58409 is a wasteful number, since it uses less digits than its factorization.

58409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 58409 is about 241.6795398870. The cubic root of 58409 is about 38.7995412140.

The spelling of 58409 in words is "fifty-eight thousand, four hundred nine".