329908947 has 8 divisors (see below), whose sum is σ = 440047056. Its totient is φ = 219855072.

The previous prime is 329908937. The next prime is 329908949. The reversal of 329908947 is 749809923.

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

It is not a de Polignac number, because 329908947 - 2¹⁹ = 329384659 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 329908947.

It is not an unprimeable number, because it can be changed into a prime (329908949) by changing a digit.

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, 11268 + ... + 28049.

It is an arithmetic number, because the mean of its divisors is an integer number (55005882).

Almost surely, 2^329908947 is an apocalyptic number.

329908947 is a deficient number, since it is larger than the sum of its proper divisors (110138109).

329908947 is a wasteful number, since it uses less digits than its factorization.

329908947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42117.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 329908947 is about 18163.3958003453. The cubic root of 329908947 is about 690.9787601076.

The spelling of 329908947 in words is "three hundred twenty-nine million, nine hundred eight thousand, nine hundred forty-seven".