328946887 has 4 divisors (see below), whose sum is σ = 328983880. Its totient is φ = 328909896.

The previous prime is 328946879. The next prime is 328946941. The reversal of 328946887 is 788649823.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 328946887 - 2³ = 328946879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328941887) 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, 3808 + ... + 25930.

It is an arithmetic number, because the mean of its divisors is an integer number (82245970).

Almost surely, 2^328946887 is an apocalyptic number.

328946887 is a deficient number, since it is larger than the sum of its proper divisors (36993).

328946887 is a wasteful number, since it uses less digits than its factorization.

328946887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36992.

The product of its digits is 4644864, while the sum is 55.

The square root of 328946887 is about 18136.8929808829. The cubic root of 328946887 is about 690.3064430323.

It can be divided in two parts, 3289 and 46887, that added together give a square (50176 = 224²).

The spelling of 328946887 in words is "three hundred twenty-eight million, nine hundred forty-six thousand, eight hundred eighty-seven".