328966633 has 4 divisors (see below), whose sum is σ = 340310340. Its totient is φ = 317622928.

The previous prime is 328966591. The next prime is 328966661. The reversal of 328966633 is 336669823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 211179024 + 117787609 = 14532^2 + 10853^2 .

It is a cyclic number.

It is not a de Polignac number, because 328966633 - 2¹⁷ = 328835561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328966333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5671810 + ... + 5671867.

It is an arithmetic number, because the mean of its divisors is an integer number (85077585).

Almost surely, 2^328966633 is an apocalyptic number.

It is an amenable number.

328966633 is a deficient number, since it is larger than the sum of its proper divisors (11343707).

328966633 is a wasteful number, since it uses less digits than its factorization.

328966633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11343706.

The product of its digits is 839808, while the sum is 46.

The square root of 328966633 is about 18137.4373327656. The cubic root of 328966633 is about 690.3202553111.

The spelling of 328966633 in words is "three hundred twenty-eight million, nine hundred sixty-six thousand, six hundred thirty-three".