328546865 has 16 divisors (see below), whose sum is σ = 406647120. Its totient is φ = 254638080.

The previous prime is 328546849. The next prime is 328546871. The reversal of 328546865 is 568645823.

It can be written as a sum of positive squares in 8 ways, for example, as 87179569 + 241367296 = 9337^2 + 15536^2 .

It is not a de Polignac number, because 328546865 - 2⁴ = 328546849 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40901 + ... + 48269.

It is an arithmetic number, because the mean of its divisors is an integer number (25415445).

Almost surely, 2^328546865 is an apocalyptic number.

It is an amenable number.

328546865 is a deficient number, since it is larger than the sum of its proper divisors (78100255).

328546865 is a wasteful number, since it uses less digits than its factorization.

328546865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its digits is 1382400, while the sum is 47.

The square root of 328546865 is about 18125.8617726165. The cubic root of 328546865 is about 690.0265095185.

The spelling of 328546865 in words is "three hundred twenty-eight million, five hundred forty-six thousand, eight hundred sixty-five".