328127999 has 12 divisors (see below), whose sum is σ = 350282088. Its totient is φ = 307305600.

The previous prime is 328127993. The next prime is 328128013. The reversal of 328127999 is 999721823.

It is not a de Polignac number, because 328127999 - 2¹² = 328123903 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 (328127993) 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, 58289 + ... + 63669.

It is an arithmetic number, because the mean of its divisors is an integer number (29190174).

Almost surely, 2^328127999 is an apocalyptic number.

328127999 is a deficient number, since it is larger than the sum of its proper divisors (22154089).

328127999 is a wasteful number, since it uses less digits than its factorization.

328127999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626 (or 5609 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 328127999 is about 18114.3037128121. The cubic root of 328127999 is about 689.7331454257.

The spelling of 328127999 in words is "three hundred twenty-eight million, one hundred twenty-seven thousand, nine hundred ninety-nine".