128384659 has 8 divisors (see below), whose sum is σ = 139604192. Its totient is φ = 117357120.

The previous prime is 128384657. The next prime is 128384677. The reversal of 128384659 is 956483821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128384659 - 2¹ = 128384657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128384657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46602 + ... + 49279.

It is an arithmetic number, because the mean of its divisors is an integer number (17450524).

Almost surely, 2^128384659 is an apocalyptic number.

128384659 is a deficient number, since it is larger than the sum of its proper divisors (11219533).

128384659 is a wasteful number, since it uses less digits than its factorization.

128384659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95997.

The product of its digits is 414720, while the sum is 46.

The square root of 128384659 is about 11330.6954332027. The cubic root of 128384659 is about 504.4727484041.

The spelling of 128384659 in words is "one hundred twenty-eight million, three hundred eighty-four thousand, six hundred fifty-nine".