328538783 has 4 divisors (see below), whose sum is σ = 332230320. Its totient is φ = 324847248.

The previous prime is 328538761. The next prime is 328538807. The reversal of 328538783 is 387835823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387835823 = 31 ⋅12510833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328538783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328538383) 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, 1845635 + ... + 1845812.

It is an arithmetic number, because the mean of its divisors is an integer number (83057580).

Almost surely, 2^328538783 is an apocalyptic number.

328538783 is a deficient number, since it is larger than the sum of its proper divisors (3691537).

328538783 is an equidigital number, since it uses as much as digits as its factorization.

328538783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691536.

The product of its digits is 967680, while the sum is 47.

The square root of 328538783 is about 18125.6388301213. The cubic root of 328538783 is about 690.0208514318.

The spelling of 328538783 in words is "three hundred twenty-eight million, five hundred thirty-eight thousand, seven hundred eighty-three".