328563 has 16 divisors (see below), whose sum is σ = 499840. Its totient is φ = 213192.

The previous prime is 328543. The next prime is 328579. The reversal of 328563 is 365823.

It is not a de Polignac number, because 328563 - 2⁹ = 328051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 3² + 2¹⁶ + 5⁴ + 8⁶ + 6 + 3⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 1302.

It is an arithmetic number, because the mean of its divisors is an integer number (31240).

2³²⁸⁵⁶³ is an apocalyptic number.

328563 is a deficient number, since it is larger than the sum of its proper divisors (171277).

328563 is a wasteful number, since it uses less digits than its factorization.

328563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 329 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 328563 is about 573.2041521134. The cubic root of 328563 is about 69.0037805112.

The spelling of 328563 in words is "three hundred twenty-eight thousand, five hundred sixty-three".