539648 has 44 divisors (see below), whose sum is σ = 1179072. Its totient is φ = 245760.

The previous prime is 539641. The next prime is 539653. The reversal of 539648 is 846935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539641) by changing a digit.

539648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17393 + ... + 17423.

539648 is a Friedman number, since it can be written as (9+8^3+6)*4^5, using all its digits and the basic arithmetic operations.

2⁵³⁹⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589536).

539648 is an abundant number, since it is smaller than the sum of its proper divisors (639424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539648 is a wasteful number, since it uses less digits than its factorization.

539648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 50 counting only the distinct ones).

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

The square root of 539648 is about 734.6073781279. The cubic root of 539648 is about 81.4148306703.

The spelling of 539648 in words is "five hundred thirty-nine thousand, six hundred forty-eight".