328774686 has 8 divisors (see below), whose sum is σ = 657549384. Its totient is φ = 109591560.

The previous prime is 328774657. The next prime is 328774697. The reversal of 328774686 is 686477823.

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

328774686 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 27397885 + ... + 27397896.

It is an arithmetic number, because the mean of its divisors is an integer number (82193673).

Almost surely, 2^328774686 is an apocalyptic number.

328774686 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.

328774686 is a wasteful number, since it uses less digits than its factorization.

328774686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54795786.

The product of its digits is 2709504, while the sum is 51.

The square root of 328774686 is about 18132.1451020005. The cubic root of 328774686 is about 690.1859654180.

The spelling of 328774686 in words is "three hundred twenty-eight million, seven hundred seventy-four thousand, six hundred eighty-six".