328447983 has 4 divisors (see below), whose sum is σ = 437930648. Its totient is φ = 218965320.

The previous prime is 328447961. The next prime is 328447991. The reversal of 328447983 is 389744823.

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

It is not a de Polignac number, because 328447983 - 2⁶ = 328447919 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 (328447783) 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, 54741328 + ... + 54741333.

It is an arithmetic number, because the mean of its divisors is an integer number (109482662).

Almost surely, 2^328447983 is an apocalyptic number.

328447983 is a deficient number, since it is larger than the sum of its proper divisors (109482665).

328447983 is a wasteful number, since it uses less digits than its factorization.

328447983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109482664.

The product of its digits is 1161216, while the sum is 48.

The square root of 328447983 is about 18123.1339177307. The cubic root of 328447983 is about 689.9572773380.

The spelling of 328447983 in words is "three hundred twenty-eight million, four hundred forty-seven thousand, nine hundred eighty-three".