328778 has 8 divisors (see below), whose sum is σ = 504768. Its totient is φ = 160524.

The previous prime is 328777. The next prime is 328781. The reversal of 328778 is 877823.

It is a happy number.

328778 is nontrivially palindromic in base 7.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328778.

It is not an unprimeable number, because it can be changed into a prime (328777) 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, 1826 + ... + 1997.

It is an arithmetic number, because the mean of its divisors is an integer number (63096).

2³²⁸⁷⁷⁸ is an apocalyptic number.

328778 is a deficient number, since it is larger than the sum of its proper divisors (175990).

328778 is a wasteful number, since it uses less digits than its factorization.

328778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868.

The product of its digits is 18816, while the sum is 35.

The square root of 328778 is about 573.3916636994. The cubic root of 328778 is about 69.0188284401.

The spelling of 328778 in words is "three hundred twenty-eight thousand, seven hundred seventy-eight".