328623 has 4 divisors (see below), whose sum is σ = 438168. Its totient is φ = 219080.

The previous prime is 328621. The next prime is 328633. The reversal of 328623 is 326823.

328623 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 328623 - 2¹ = 328621 is a prime.

It is a super-2 number, since 2×328623² = 215986152258, which contains 22 as substring.

It is a D-number.

328623 is strictly pandigital in base 7.

328623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 328593 and 328602.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328623.

It is not an unprimeable number, because it can be changed into a prime (328621) 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, 54768 + ... + 54773.

It is an arithmetic number, because the mean of its divisors is an integer number (109542).

2³²⁸⁶²³ is an apocalyptic number.

328623 is a deficient number, since it is larger than the sum of its proper divisors (109545).

328623 is a wasteful number, since it uses less digits than its factorization.

328623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109544.

The product of its digits is 1728, while the sum is 24.

The square root of 328623 is about 573.2564870981. The cubic root of 328623 is about 69.0079805934.

The spelling of 328623 in words is "three hundred twenty-eight thousand, six hundred twenty-three".