328881667 has 4 divisors (see below), whose sum is σ = 331899040. Its totient is φ = 325864296.

The previous prime is 328881653. The next prime is 328881689. The reversal of 328881667 is 766188823.

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

It is a cyclic number.

It is not a de Polignac number, because 328881667 - 2¹¹ = 328879619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328881667.

It is not an unprimeable number, because it can be changed into a prime (328881647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508523 + ... + 1508740.

It is an arithmetic number, because the mean of its divisors is an integer number (82974760).

Almost surely, 2^328881667 is an apocalyptic number.

328881667 is a deficient number, since it is larger than the sum of its proper divisors (3017373).

328881667 is a wasteful number, since it uses less digits than its factorization.

328881667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017372.

The product of its digits is 774144, while the sum is 49.

The square root of 328881667 is about 18135.0948991176. The cubic root of 328881667 is about 690.2608178734.

The spelling of 328881667 in words is "three hundred twenty-eight million, eight hundred eighty-one thousand, six hundred sixty-seven".