328319 has 4 divisors (see below), whose sum is σ = 329544. Its totient is φ = 327096.

The previous prime is 328303. The next prime is 328327. The reversal of 328319 is 913823.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 913823 = 277 ⋅3299.

It is a cyclic number.

It is not a de Polignac number, because 328319 - 2⁴ = 328303 is a prime.

It is a super-2 number, since 2×328319² = 215586731522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328379) 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, 17 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (82386).

2³²⁸³¹⁹ is an apocalyptic number.

328319 is a deficient number, since it is larger than the sum of its proper divisors (1225).

328319 is an equidigital number, since it uses as much as digits as its factorization.

328319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its digits is 1296, while the sum is 26.

The square root of 328319 is about 572.9912739301. The cubic root of 328319 is about 68.9866949071.

The spelling of 328319 in words is "three hundred twenty-eight thousand, three hundred nineteen".