328904887 has 4 divisors (see below), whose sum is σ = 333068320. Its totient is φ = 324741456.

The previous prime is 328904867. The next prime is 328904903. The reversal of 328904887 is 788409823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788409823 = 379 ⋅2080237.

It is a cyclic number.

It is not a de Polignac number, because 328904887 - 2⁷ = 328904759 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 328904887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328904827) 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, 2081598 + ... + 2081755.

It is an arithmetic number, because the mean of its divisors is an integer number (83267080).

Almost surely, 2^328904887 is an apocalyptic number.

328904887 is a deficient number, since it is larger than the sum of its proper divisors (4163433).

328904887 is an equidigital number, since it uses as much as digits as its factorization.

328904887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163432.

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

The square root of 328904887 is about 18135.7350829791. The cubic root of 328904887 is about 690.2770622966.

The spelling of 328904887 in words is "three hundred twenty-eight million, nine hundred four thousand, eight hundred eighty-seven".