328959971 has 4 divisors (see below), whose sum is σ = 329111232. Its totient is φ = 328808712.

The previous prime is 328959907. The next prime is 328959989. The reversal of 328959971 is 179959823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179959823 = 37 ⋅4863779.

It is a cyclic number.

It is not a de Polignac number, because 328959971 - 2⁶ = 328959907 is a prime.

It is a super-3 number, since 3×328959971³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328959991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72320 + ... + 76733.

It is an arithmetic number, because the mean of its divisors is an integer number (82277808).

Almost surely, 2^328959971 is an apocalyptic number.

328959971 is a deficient number, since it is larger than the sum of its proper divisors (151261).

328959971 is a wasteful number, since it uses less digits than its factorization.

328959971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151260.

The product of its digits is 1224720, while the sum is 53.

The square root of 328959971 is about 18137.2536785479. The cubic root of 328959971 is about 690.3155953201.

The spelling of 328959971 in words is "three hundred twenty-eight million, nine hundred fifty-nine thousand, nine hundred seventy-one".