328506673 has 4 divisors (see below), whose sum is σ = 358370928. Its totient is φ = 298642420.

The previous prime is 328506671. The next prime is 328506679. The reversal of 328506673 is 376605823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 376605823 = 11 ⋅34236893.

It is a cyclic number.

It is not a de Polignac number, because 328506673 - 2¹ = 328506671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328506671) 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, 14932111 + ... + 14932132.

It is an arithmetic number, because the mean of its divisors is an integer number (89592732).

Almost surely, 2^328506673 is an apocalyptic number.

It is an amenable number.

328506673 is a deficient number, since it is larger than the sum of its proper divisors (29864255).

328506673 is a wasteful number, since it uses less digits than its factorization.

328506673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29864254.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 328506673 is about 18124.7530465935. The cubic root of 328506673 is about 689.9983707866.

The spelling of 328506673 in words is "three hundred twenty-eight million, five hundred six thousand, six hundred seventy-three".