328478 has 4 divisors (see below), whose sum is σ = 492720. Its totient is φ = 164238.

The previous prime is 328439. The next prime is 328481. The reversal of 328478 is 874823.

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

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 328478.

It is an unprimeable number.

328478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82118 + ... + 82121.

It is an arithmetic number, because the mean of its divisors is an integer number (123180).

2³²⁸⁴⁷⁸ is an apocalyptic number.

328478 is a deficient number, since it is larger than the sum of its proper divisors (164242).

328478 is a wasteful number, since it uses less digits than its factorization.

328478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164241.

The product of its digits is 10752, while the sum is 32.

The square root of 328478 is about 573.1300027044. The cubic root of 328478 is about 68.9978295193.

The spelling of 328478 in words is "three hundred twenty-eight thousand, four hundred seventy-eight".