329399855 has 8 divisors (see below), whose sum is σ = 397329072. Its totient is φ = 262153728.

The previous prime is 329399849. The next prime is 329399857. The reversal of 329399855 is 558993923.

It is a happy number.

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 329399855 - 2¹⁰ = 329398831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 329399797 and 329399806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329399857) 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, 169709 + ... + 171638.

It is an arithmetic number, because the mean of its divisors is an integer number (49666134).

Almost surely, 2^329399855 is an apocalyptic number.

329399855 is a deficient number, since it is larger than the sum of its proper divisors (67929217).

329399855 is a wasteful number, since it uses less digits than its factorization.

329399855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341545.

The product of its digits is 2624400, while the sum is 53.

The square root of 329399855 is about 18149.3761600778. The cubic root of 329399855 is about 690.6231540528.

The spelling of 329399855 in words is "three hundred twenty-nine million, three hundred ninety-nine thousand, eight hundred fifty-five".