328773789 has 24 divisors (see below), whose sum is σ = 498414720. Its totient is φ = 214097616.

The previous prime is 328773773. The next prime is 328773791. The reversal of 328773789 is 987377823.

It is not a de Polignac number, because 328773789 - 2⁴ = 328773773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328773769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645667 + ... + 646175.

It is an arithmetic number, because the mean of its divisors is an integer number (20767280).

Almost surely, 2^328773789 is an apocalyptic number.

It is an amenable number.

328773789 is a deficient number, since it is larger than the sum of its proper divisors (169640931).

328773789 is an frugal number, since it uses more digits than its factorization.

328773789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 559 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 328773789 is about 18132.1203669069. The cubic root of 328773789 is about 690.1853377365.

The spelling of 328773789 in words is "three hundred twenty-eight million, seven hundred seventy-three thousand, seven hundred eighty-nine".