7328 has 12 divisors (see below), whose sum is σ = 14490. Its totient is φ = 3648.

The previous prime is 7321. The next prime is 7331. The reversal of 7328 is 8237.

It can be written as a sum of positive squares in only one way, i.e., 4624 + 2704 = 68^2 + 52^2 .

It is a plaindrome in base 13 and base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (7321) by changing a digit.

7328 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 as a sum of consecutive naturals, namely, 83 + ... + 146.

2⁷³²⁸ is an apocalyptic number.

It is an amenable number.

7328 is a deficient number, since it is larger than the sum of its proper divisors (7162).

7328 is a wasteful number, since it uses less digits than its factorization.

7328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 231 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 7328 is about 85.6037382361. The cubic root of 7328 is about 19.4235445884.

Subtracting 7328 from its reverse (8237), we obtain a palindrome (909).

It can be divided in two parts, 73 and 28, that added together give a palindrome (101).

The spelling of 7328 in words is "seven thousand, three hundred twenty-eight".