328573217 has 4 divisors (see below), whose sum is σ = 375512256. Its totient is φ = 281634180.

The previous prime is 328573207. The next prime is 328573237. The reversal of 328573217 is 712375823.

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.

It is a cyclic number.

It is not a de Polignac number, because 328573217 - 2⁶ = 328573153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328573207) 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, 23469509 + ... + 23469522.

It is an arithmetic number, because the mean of its divisors is an integer number (93878064).

Almost surely, 2^328573217 is an apocalyptic number.

It is an amenable number.

328573217 is a deficient number, since it is larger than the sum of its proper divisors (46939039).

328573217 is an equidigital number, since it uses as much as digits as its factorization.

328573217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46939038.

The product of its digits is 70560, while the sum is 38.

The square root of 328573217 is about 18126.5886752031. The cubic root of 328573217 is about 690.0449575132.

The spelling of 328573217 in words is "three hundred twenty-eight million, five hundred seventy-three thousand, two hundred seventeen".