327728 has 10 divisors (see below), whose sum is σ = 635004. Its totient is φ = 163856.

The previous prime is 327721. The next prime is 327737. The reversal of 327728 is 827723.

It is a self number, because there is not a number n which added to its sum of digits gives 327728.

It is not an unprimeable number, because it can be changed into a prime (327721) by changing a digit.

327728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226 + ... + 10257.

2³²⁷⁷²⁸ is an apocalyptic number.

It is an amenable number.

327728 is a deficient number, since it is larger than the sum of its proper divisors (307276).

327728 is a wasteful number, since it uses less digits than its factorization.

327728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20491 (or 20485 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 327728 is about 572.4753269793. The cubic root of 327728 is about 68.9452762209.

The spelling of 327728 in words is "three hundred twenty-seven thousand, seven hundred twenty-eight".