329216 has 20 divisors (see below), whose sum is σ = 658812. Its totient is φ = 164352.

The previous prime is 329209. The next prime is 329233. The reversal of 329216 is 612923.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 329191 and 329200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191 + ... + 833.

2³²⁹²¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 329216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329406).

329216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

329216 is an frugal number, since it uses more digits than its factorization.

329216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 645 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 329216 is about 573.7734744653. The cubic root of 329216 is about 69.0494639373.

It can be divided in two parts, 329 and 216, that added together give a palindrome (545).

The spelling of 329216 in words is "three hundred twenty-nine thousand, two hundred sixteen".