328644679 has 16 divisors (see below), whose sum is σ = 366656544. Its totient is φ = 292032000.

The previous prime is 328644647. The next prime is 328644683. The reversal of 328644679 is 976446823.

It is a cyclic number.

It is not a de Polignac number, because 328644679 - 2⁵ = 328644647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328654679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181579 + ... + 183379.

It is an arithmetic number, because the mean of its divisors is an integer number (22916034).

Almost surely, 2^328644679 is an apocalyptic number.

328644679 is a deficient number, since it is larger than the sum of its proper divisors (38011865).

328644679 is a wasteful number, since it uses less digits than its factorization.

328644679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its digits is 1741824, while the sum is 49.

The square root of 328644679 is about 18128.5597607753. The cubic root of 328644679 is about 690.0949802739.

It can be divided in two parts, 3 and 28644679, that added together give a palindrome (28644682).

The spelling of 328644679 in words is "three hundred twenty-eight million, six hundred forty-four thousand, six hundred seventy-nine".