329420897 has 8 divisors (see below), whose sum is σ = 356083560. Its totient is φ = 302947200.

The previous prime is 329420863. The next prime is 329420899. The reversal of 329420897 is 798024923.

It can be written as a sum of positive squares in 4 ways, for example, as 5564881 + 323856016 = 2359^2 + 17996^2 .

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-329420897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329420899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43604 + ... + 50597.

It is an arithmetic number, because the mean of its divisors is an integer number (44510445).

Almost surely, 2^329420897 is an apocalyptic number.

It is an amenable number.

329420897 is a deficient number, since it is larger than the sum of its proper divisors (26662663).

329420897 is a wasteful number, since it uses less digits than its factorization.

329420897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94483.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 329420897 is about 18149.9558401667. The cubic root of 329420897 is about 690.6378593649.

The spelling of 329420897 in words is "three hundred twenty-nine million, four hundred twenty thousand, eight hundred ninety-seven".