128360387 has 8 divisors (see below), whose sum is σ = 136016496. Its totient is φ = 120716032.

The previous prime is 128360359. The next prime is 128360389. The reversal of 128360387 is 783063821.

It is a happy number.

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 128360387 - 2⁸ = 128360131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128360387.

It is not an unprimeable number, because it can be changed into a prime (128360389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30548 + ... + 34494.

It is an arithmetic number, because the mean of its divisors is an integer number (17002062).

Almost surely, 2^128360387 is an apocalyptic number.

128360387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128360387 is a deficient number, since it is larger than the sum of its proper divisors (7656109).

128360387 is a wasteful number, since it uses less digits than its factorization.

128360387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 128360387 is about 11329.6243097466. The cubic root of 128360387 is about 504.4409550565.

The spelling of 128360387 in words is "one hundred twenty-eight million, three hundred sixty thousand, three hundred eighty-seven".