329238913 has 8 divisors (see below), whose sum is σ = 338376168. Its totient is φ = 320114304.

The previous prime is 329238863. The next prime is 329238919. The reversal of 329238913 is 319832923.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72982849 + 256256064 = 8543^2 + 16008^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329238913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329238919) 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, 77595 + ... + 81727.

It is an arithmetic number, because the mean of its divisors is an integer number (42297021).

Almost surely, 2^329238913 is an apocalyptic number.

It is an amenable number.

329238913 is a deficient number, since it is larger than the sum of its proper divisors (9137255).

329238913 is a wasteful number, since it uses less digits than its factorization.

329238913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323.

The product of its digits is 69984, while the sum is 40.

The square root of 329238913 is about 18144.9418020560. The cubic root of 329238913 is about 690.5106581735.

The spelling of 329238913 in words is "three hundred twenty-nine million, two hundred thirty-eight thousand, nine hundred thirteen".