328799217 has 8 divisors (see below), whose sum is σ = 444942496. Its totient is φ = 215927712.

The previous prime is 328799209. The next prime is 328799257. The reversal of 328799217 is 712997823.

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

It is not a de Polignac number, because 328799217 - 2³ = 328799209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328799257) 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, 817708 + ... + 818109.

It is an arithmetic number, because the mean of its divisors is an integer number (55617812).

Almost surely, 2^328799217 is an apocalyptic number.

It is an amenable number.

328799217 is a deficient number, since it is larger than the sum of its proper divisors (116143279).

328799217 is a wasteful number, since it uses less digits than its factorization.

328799217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635887.

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

The square root of 328799217 is about 18132.8215399590. The cubic root of 328799217 is about 690.2031307002.

The spelling of 328799217 in words is "three hundred twenty-eight million, seven hundred ninety-nine thousand, two hundred seventeen".