328646 has 8 divisors (see below), whose sum is σ = 499944. Its totient is φ = 162000.

The previous prime is 328639. The next prime is 328651. The reversal of 328646 is 646823.

328646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct 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 328646.

It is an unprimeable number.

328646 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 in 3 ways as a sum of consecutive naturals, for example, 980 + ... + 1271.

It is an arithmetic number, because the mean of its divisors is an integer number (62493).

2³²⁸⁶⁴⁶ is an apocalyptic number.

328646 is a deficient number, since it is larger than the sum of its proper divisors (171298).

328646 is a wasteful number, since it uses less digits than its factorization.

328646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its digits is 6912, while the sum is 29.

The square root of 328646 is about 573.2765475754. The cubic root of 328646 is about 69.0095904894.

It can be divided in two parts, 32 and 8646, that multiplied together give a palindrome (276672).

The spelling of 328646 in words is "three hundred twenty-eight thousand, six hundred forty-six".