328221713 has 8 divisors (see below), whose sum is σ = 349060320. Its totient is φ = 307739520.

The previous prime is 328221697. The next prime is 328221743. The reversal of 328221713 is 317122823.

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

It is a cyclic number.

It is not a de Polignac number, because 328221713 - 2⁴ = 328221697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (328221743) 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, 87203 + ... + 90888.

It is an arithmetic number, because the mean of its divisors is an integer number (43632540).

Almost surely, 2^328221713 is an apocalyptic number.

It is an amenable number.

328221713 is a deficient number, since it is larger than the sum of its proper divisors (20838607).

328221713 is a wasteful number, since it uses less digits than its factorization.

328221713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178207.

The product of its digits is 4032, while the sum is 29.

The square root of 328221713 is about 18116.8902684760. The cubic root of 328221713 is about 689.7988022218.

The spelling of 328221713 in words is "three hundred twenty-eight million, two hundred twenty-one thousand, seven hundred thirteen".