328779 has 28 divisors (see below), whose sum is σ = 550872. Its totient is φ = 194400.

The previous prime is 328777. The next prime is 328781. The reversal of 328779 is 977823.

It is an interprime number because it is at equal distance from previous prime (328777) and next prime (328781).

It is not a de Polignac number, because 328779 - 2¹ = 328777 is a prime.

It is an Ulam number.

328779 is a lucky number.

It is a nialpdrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328779.

It is not an unprimeable number, because it can be changed into a prime (328777) 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 27 ways as a sum of consecutive naturals, for example, 7999 + ... + 8039.

It is an arithmetic number, because the mean of its divisors is an integer number (19674).

2³²⁸⁷⁷⁹ is an apocalyptic number.

328779 is a deficient number, since it is larger than the sum of its proper divisors (222093).

328779 is an equidigital number, since it uses as much as digits as its factorization.

328779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 55 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 328779 is about 573.3925357031. The cubic root of 328779 is about 69.0188984151.

It can be divided in two parts, 3 and 28779, that added together give a palindrome (28782).

The spelling of 328779 in words is "three hundred twenty-eight thousand, seven hundred seventy-nine".