328655 has 4 divisors (see below), whose sum is σ = 394392. Its totient is φ = 262920.

The previous prime is 328651. The next prime is 328667. The reversal of 328655 is 556823.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 328655 - 2² = 328651 is a prime.

It is a d-powerful number, because it can be written as 3¹⁰ + 2¹⁸ + 6³ + 8⁴ + 5² + 5⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32861 + ... + 32870.

It is an arithmetic number, because the mean of its divisors is an integer number (98598).

2³²⁸⁶⁵⁵ is an apocalyptic number.

328655 is a deficient number, since it is larger than the sum of its proper divisors (65737).

328655 is an equidigital number, since it uses as much as digits as its factorization.

328655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65736.

The product of its digits is 7200, while the sum is 29.

The square root of 328655 is about 573.2843971364. The cubic root of 328655 is about 69.0102204282.

It can be divided in two parts, 328 and 655, that multiplied together give a triangular number (214840 = T₆₅₅).

The spelling of 328655 in words is "three hundred twenty-eight thousand, six hundred fifty-five".