663548 has 6 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 331772.

The previous prime is 663547. The next prime is 663557. The reversal of 663548 is 845366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82940 + ... + 82947.

It is an arithmetic number, because the mean of its divisors is an integer number (193536).

663548 is a Friedman number, since it can be written as (8*3)^5/(6+6)-4, using all its digits and the basic arithmetic operations.

2⁶⁶³⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

663548 is a deficient number, since it is larger than the sum of its proper divisors (497668).

663548 is a wasteful number, since it uses less digits than its factorization.

663548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165891 (or 165889 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 663548 is about 814.5845566913. The cubic root of 663548 is about 87.2216131932.

The spelling of 663548 in words is "six hundred sixty-three thousand, five hundred forty-eight".