59439 has 4 divisors (see below), whose sum is σ = 79256. Its totient is φ = 39624.

The previous prime is 59419. The next prime is 59441. The reversal of 59439 is 93495.

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

It is not a de Polignac number, because 59439 - 2⁵ = 59407 is a prime.

It is a D-number.

It is a Duffinian number.

59439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (59419) 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, 9904 + ... + 9909.

It is an arithmetic number, because the mean of its divisors is an integer number (19814).

2⁵⁹⁴³⁹ is an apocalyptic number.

59439 is a deficient number, since it is larger than the sum of its proper divisors (19817).

59439 is a wasteful number, since it uses less digits than its factorization.

59439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19816.

The product of its digits is 4860, while the sum is 30.

The square root of 59439 is about 243.8011484797. The cubic root of 59439 is about 39.0262807741.

The spelling of 59439 in words is "fifty-nine thousand, four hundred thirty-nine".