48639 has 8 divisors (see below), whose sum is σ = 67072. Its totient is φ = 31320.

The previous prime is 48623. The next prime is 48647. The reversal of 48639 is 93684.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48639 - 2⁴ = 48623 is a prime.

It is a Duffinian number.

48639 is a lucky number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 48639.

It is not an unprimeable number, because it can be changed into a prime (48619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169 + ... + 354.

It is an arithmetic number, because the mean of its divisors is an integer number (8384).

2⁴⁸⁶³⁹ is an apocalyptic number.

48639 is a deficient number, since it is larger than the sum of its proper divisors (18433).

48639 is a wasteful number, since it uses less digits than its factorization.

48639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 5184, while the sum is 30.

The square root of 48639 is about 220.5425129085. The cubic root of 48639 is about 36.5029709222.

It can be divided in two parts, 486 and 39, that added together give a palindrome (525).

The spelling of 48639 in words is "forty-eight thousand, six hundred thirty-nine".