328423 has 4 divisors (see below), whose sum is σ = 347760. Its totient is φ = 309088.

The previous prime is 328421. The next prime is 328429. The reversal of 328423 is 324823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324823 = 37 ⋅8779.

It is a cyclic number.

It is not a de Polignac number, because 328423 - 2¹ = 328421 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 328394 and 328403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328421) 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, 9643 + ... + 9676.

It is an arithmetic number, because the mean of its divisors is an integer number (86940).

2³²⁸⁴²³ is an apocalyptic number.

328423 is a deficient number, since it is larger than the sum of its proper divisors (19337).

328423 is a wasteful number, since it uses less digits than its factorization.

328423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19336.

The product of its digits is 1152, while the sum is 22.

The square root of 328423 is about 573.0820185628. The cubic root of 328423 is about 68.9939783305.

Subtracting from 328423 its reverse (324823), we obtain a square (3600 = 60²).

The spelling of 328423 in words is "three hundred twenty-eight thousand, four hundred twenty-three".