328645867 has 4 divisors (see below), whose sum is σ = 358522776. Its totient is φ = 298768960.

The previous prime is 328645859. The next prime is 328645897. The reversal of 328645867 is 768546823.

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

It is a cyclic number.

It is not a de Polignac number, because 328645867 - 2³ = 328645859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328645867.

It is not an unprimeable number, because it can be changed into a prime (328645897) 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, 14938438 + ... + 14938459.

It is an arithmetic number, because the mean of its divisors is an integer number (89630694).

Almost surely, 2^328645867 is an apocalyptic number.

328645867 is a deficient number, since it is larger than the sum of its proper divisors (29876909).

328645867 is a wasteful number, since it uses less digits than its factorization.

328645867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29876908.

The product of its digits is 1935360, while the sum is 49.

The square root of 328645867 is about 18128.5925267242. The cubic root of 328645867 is about 690.0958118019.

The spelling of 328645867 in words is "three hundred twenty-eight million, six hundred forty-five thousand, eight hundred sixty-seven".