329983285 has 8 divisors (see below), whose sum is σ = 396086616. Its totient is φ = 263915520.

The previous prime is 329983273. The next prime is 329983289. The reversal of 329983285 is 582389923.

It can be written as a sum of positive squares in 4 ways, for example, as 5731236 + 324252049 = 2394^2 + 18007^2 .

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

It is not a de Polignac number, because 329983285 - 2¹⁷ = 329852213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329983289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20157 + ... + 32653.

It is an arithmetic number, because the mean of its divisors is an integer number (49510827).

Almost surely, 2^329983285 is an apocalyptic number.

It is an amenable number.

329983285 is a deficient number, since it is larger than the sum of its proper divisors (66103331).

329983285 is a wasteful number, since it uses less digits than its factorization.

329983285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783.

The product of its digits is 933120, while the sum is 49.

The square root of 329983285 is about 18165.4420535257. The cubic root of 329983285 is about 691.0306553572.

The spelling of 329983285 in words is "three hundred twenty-nine million, nine hundred eighty-three thousand, two hundred eighty-five".