328489773 has 4 divisors (see below), whose sum is σ = 437986368. Its totient is φ = 218993180.

The previous prime is 328489769. The next prime is 328489781. The reversal of 328489773 is 377984823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 328489773 - 2² = 328489769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328489723) 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, 54748293 + ... + 54748298.

It is an arithmetic number, because the mean of its divisors is an integer number (109496592).

Almost surely, 2^328489773 is an apocalyptic number.

It is an amenable number.

328489773 is a deficient number, since it is larger than the sum of its proper divisors (109496595).

328489773 is a wasteful number, since it uses less digits than its factorization.

328489773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109496594.

The product of its digits is 2032128, while the sum is 51.

The square root of 328489773 is about 18124.2868273485. The cubic root of 328489773 is about 689.9865382797.

The spelling of 328489773 in words is "three hundred twenty-eight million, four hundred eighty-nine thousand, seven hundred seventy-three".