328648 has 8 divisors (see below), whose sum is σ = 616230. Its totient is φ = 164320.

The previous prime is 328639. The next prime is 328651. The reversal of 328648 is 846823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 289444 + 39204 = 538^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20533 + ... + 20548.

2³²⁸⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

328648 is a deficient number, since it is larger than the sum of its proper divisors (287582).

328648 is a wasteful number, since it uses less digits than its factorization.

328648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41087 (or 41083 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 328648 is about 573.2782919316. The cubic root of 328648 is about 69.0097304768.

The spelling of 328648 in words is "three hundred twenty-eight thousand, six hundred forty-eight".