328369 has 4 divisors (see below), whose sum is σ = 336420. Its totient is φ = 320320.

The previous prime is 328357. The next prime is 328373. The reversal of 328369 is 963823.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97969 + 230400 = 313^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 328369 - 2¹⁵ = 295601 is a prime.

It is a super-2 number, since 2×328369² = 215652400322, which contains 22 as substring.

It is a Duffinian number.

328369 is a modest number, since divided by 369 gives 328 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 328369.

It is not an unprimeable number, because it can be changed into a prime (328379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3964 + ... + 4045.

It is an arithmetic number, because the mean of its divisors is an integer number (84105).

2³²⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

328369 is a deficient number, since it is larger than the sum of its proper divisors (8051).

328369 is an equidigital number, since it uses as much as digits as its factorization.

328369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050.

The product of its digits is 7776, while the sum is 31.

The square root of 328369 is about 573.0349029509. The cubic root of 328369 is about 68.9901967449.

The spelling of 328369 in words is "three hundred twenty-eight thousand, three hundred sixty-nine".