328500085 has 4 divisors (see below), whose sum is σ = 394200108. Its totient is φ = 262800064.

The previous prime is 328500079. The next prime is 328500119. The reversal of 328500085 is 580005823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95296644 + 233203441 = 9762^2 + 15271^2 .

It is a cyclic number.

It is not a de Polignac number, because 328500085 - 2⁹ = 328499573 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32850004 + ... + 32850013.

It is an arithmetic number, because the mean of its divisors is an integer number (98550027).

Almost surely, 2^328500085 is an apocalyptic number.

It is an amenable number.

328500085 is a deficient number, since it is larger than the sum of its proper divisors (65700023).

328500085 is an equidigital number, since it uses as much as digits as its factorization.

328500085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65700022.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 328500085 is about 18124.5713052751. The cubic root of 328500085 is about 689.9937582576.

The spelling of 328500085 in words is "three hundred twenty-eight million, five hundred thousand, eighty-five".