329389985 has 8 divisors (see below), whose sum is σ = 416071680. Its totient is φ = 249642864.

The previous prime is 329389967. The next prime is 329389997. The reversal of 329389985 is 589983923.

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

It is a cyclic number.

It is not a de Polignac number, because 329389985 - 2⁸ = 329389729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 329389985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733537 + ... + 1733726.

It is an arithmetic number, because the mean of its divisors is an integer number (52008960).

Almost surely, 2^329389985 is an apocalyptic number.

It is an amenable number.

329389985 is a deficient number, since it is larger than the sum of its proper divisors (86681695).

329389985 is a wasteful number, since it uses less digits than its factorization.

329389985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467287.

The product of its digits is 4199040, while the sum is 56.

The square root of 329389985 is about 18149.1042478685. The cubic root of 329389985 is about 690.6162561358.

The spelling of 329389985 in words is "three hundred twenty-nine million, three hundred eighty-nine thousand, nine hundred eighty-five".