328279917 has 8 divisors (see below), whose sum is σ = 500236096. Its totient is φ = 187588512.

The previous prime is 328279867. The next prime is 328279921. The reversal of 328279917 is 719972823.

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

It is not a de Polignac number, because 328279917 - 2¹⁸ = 328017773 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 (328279957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7816168 + ... + 7816209.

It is an arithmetic number, because the mean of its divisors is an integer number (62529512).

Almost surely, 2^328279917 is an apocalyptic number.

It is an amenable number.

328279917 is a deficient number, since it is larger than the sum of its proper divisors (171956179).

328279917 is a wasteful number, since it uses less digits than its factorization.

328279917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15632387.

The product of its digits is 381024, while the sum is 48.

The square root of 328279917 is about 18118.4965435877. The cubic root of 328279917 is about 689.8395741298.

The spelling of 328279917 in words is "three hundred twenty-eight million, two hundred seventy-nine thousand, nine hundred seventeen".