58639 has 4 divisors (see below), whose sum is σ = 67024. Its totient is φ = 50256.

The previous prime is 58631. The next prime is 58657. The reversal of 58639 is 93685.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 58639 - 2³ = 58631 is a prime.

It is a Duffinian number.

58639 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 58639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58631) 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, 4182 + ... + 4195.

It is an arithmetic number, because the mean of its divisors is an integer number (16756).

2⁵⁸⁶³⁹ is an apocalyptic number.

58639 is a deficient number, since it is larger than the sum of its proper divisors (8385).

58639 is an equidigital number, since it uses as much as digits as its factorization.

58639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384.

The product of its digits is 6480, while the sum is 31.

The square root of 58639 is about 242.1549090975. The cubic root of 58639 is about 38.8504021354.

It can be divided in two parts, 586 and 39, that added together give a 4-th power (625 = 5⁴).

The spelling of 58639 in words is "fifty-eight thousand, six hundred thirty-nine".