328672986 has 8 divisors (see below), whose sum is σ = 657345984. Its totient is φ = 109557660.

The previous prime is 328672919. The next prime is 328672997. The reversal of 328672986 is 689276823.

It is a sphenic number, since it is the product of 3 distinct primes.

328672986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27389410 + ... + 27389421.

It is an arithmetic number, because the mean of its divisors is an integer number (82168248).

Almost surely, 2^328672986 is an apocalyptic number.

328672986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328672986 is a wasteful number, since it uses less digits than its factorization.

328672986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54778836.

The product of its digits is 1741824, while the sum is 51.

The square root of 328672986 is about 18129.3404733873. The cubic root of 328672986 is about 690.1147929155.

It can be divided in two parts, 32867 and 2986, that added together give a palindrome (35853).

The spelling of 328672986 in words is "three hundred twenty-eight million, six hundred seventy-two thousand, nine hundred eighty-six".