548639 has 8 divisors (see below), whose sum is σ = 675360. Its totient is φ = 434016.

The previous prime is 548629. The next prime is 548657. The reversal of 548639 is 936845.

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

It is a cyclic number.

It is not a de Polignac number, because 548639 - 2⁴ = 548623 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁷ + 6³ + 8³ + 3¹² + 9² .

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 548599 and 548608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548629) 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, 2924 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (84420).

2⁵⁴⁸⁶³⁹ is an apocalyptic number.

548639 is a deficient number, since it is larger than the sum of its proper divisors (126721).

548639 is a wasteful number, since it uses less digits than its factorization.

548639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049.

The product of its digits is 25920, while the sum is 35.

The square root of 548639 is about 740.7016943413. The cubic root of 548639 is about 81.8644896479.

It can be divided in two parts, 54863 and 9, that added together give a cube (54872 = 38³).

The spelling of 548639 in words is "five hundred forty-eight thousand, six hundred thirty-nine".