328969 has 4 divisors (see below), whose sum is σ = 343296. Its totient is φ = 314644.

The previous prime is 328961. The next prime is 328981. The reversal of 328969 is 969823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 969823 = 137 ⋅7079.

It is a cyclic number.

It is not a de Polignac number, because 328969 - 2³ = 328961 is a prime.

It is a super-2 number, since 2×328969² = 216441205922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328961) 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, 7129 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (85824).

2³²⁸⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

328969 is a deficient number, since it is larger than the sum of its proper divisors (14327).

328969 is a wasteful number, since it uses less digits than its factorization.

328969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14326.

The product of its digits is 23328, while the sum is 37.

The square root of 328969 is about 573.5581923397. The cubic root of 328969 is about 69.0321910985.

The spelling of 328969 in words is "three hundred twenty-eight thousand, nine hundred sixty-nine".