328959999 has 12 divisors (see below), whose sum is σ = 475398456. Its totient is φ = 219198672.

The previous prime is 328959997. The next prime is 328960031. The reversal of 328959999 is 999959823.

328959999 is a `hidden beast` number, since 32 + 8 + 9 + 599 + 9 + 9 = 666.

It is not a de Polignac number, because 328959999 - 2¹ = 328959997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328959991) 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, 13164 + ... + 28830.

It is an arithmetic number, because the mean of its divisors is an integer number (39616538).

Almost surely, 2^328959999 is an apocalyptic number.

328959999 is a deficient number, since it is larger than the sum of its proper divisors (146438457).

328959999 is a wasteful number, since it uses less digits than its factorization.

328959999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18006 (or 18003 counting only the distinct ones).

The product of its digits is 14171760, while the sum is 63.

The square root of 328959999 is about 18137.2544504398. The cubic root of 328959999 is about 690.3156149059.

The spelling of 328959999 in words is "three hundred twenty-eight million, nine hundred fifty-nine thousand, nine hundred ninety-nine".