328712 has 16 divisors (see below), whose sum is σ = 652860. Its totient is φ = 154624.

The previous prime is 328709. The next prime is 328721. The reversal of 328712 is 217823.

Added to its reverse (217823) it gives a triangular number (546535 = T₁₀₄₅).

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 64516 = 514^2 + 254^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328712.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073 + ... + 1344.

2³²⁸⁷¹² is an apocalyptic number.

It is an amenable number.

328712 is a deficient number, since it is larger than the sum of its proper divisors (324148).

328712 is a wasteful number, since it uses less digits than its factorization.

328712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2436 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 328712 is about 573.3341085266. The cubic root of 328712 is about 69.0142097739.

Adding to 328712 its reverse (217823), we get a triangular number (546535 = T₁₀₄₅).

Subtracting from 328712 its reverse (217823), we obtain a square (110889 = 333²).

It can be divided in two parts, 32 and 8712, that multiplied together give a square (278784 = 528²).

The spelling of 328712 in words is "three hundred twenty-eight thousand, seven hundred twelve".