328734873 has 12 divisors (see below), whose sum is σ = 484942848. Its totient is φ = 214493400.

The previous prime is 328734869. The next prime is 328734907. The reversal of 328734873 is 378437823.

It is not a de Polignac number, because 328734873 - 2² = 328734869 is a prime.

It is a super-2 number, since 2×328734873² = 216133233452652258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (328734073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388153 + ... + 388998.

It is an arithmetic number, because the mean of its divisors is an integer number (40411904).

Almost surely, 2^328734873 is an apocalyptic number.

It is an amenable number.

328734873 is a deficient number, since it is larger than the sum of its proper divisors (156207975).

328734873 is a wasteful number, since it uses less digits than its factorization.

328734873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777204 (or 777201 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 328734873 is about 18131.0472118960. The cubic root of 328734873 is about 690.1581049163.

The spelling of 328734873 in words is "three hundred twenty-eight million, seven hundred thirty-four thousand, eight hundred seventy-three".