329856 has 32 divisors (see below), whose sum is σ = 877200. Its totient is φ = 109824.

The previous prime is 329803. The next prime is 329863. The reversal of 329856 is 658923.

It is a happy number.

329856 is nontrivially palindromic in base 7.

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

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

Its product of digits (12960) is a multiple of the sum of its prime divisors (864).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46 + ... + 813.

2³²⁹⁸⁵⁶ 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 329856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438600).

329856 is an abundant number, since it is smaller than the sum of its proper divisors (547344).

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

329856 is an equidigital number, since it uses as much as digits as its factorization.

329856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 864 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 329856 is about 574.3309150655. The cubic root of 329856 is about 69.0941793130.

The spelling of 329856 in words is "three hundred twenty-nine thousand, eight hundred fifty-six".