128084799 has 8 divisors (see below), whose sum is σ = 170884480. Its totient is φ = 85337496.

The previous prime is 128084773. The next prime is 128084809. The reversal of 128084799 is 997480821.

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

It is not a de Polignac number, because 128084799 - 2⁸ = 128084543 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 (128084399) 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, 6979 + ... + 17460.

It is an arithmetic number, because the mean of its divisors is an integer number (21360560).

Almost surely, 2^128084799 is an apocalyptic number.

128084799 is a deficient number, since it is larger than the sum of its proper divisors (42799681).

128084799 is a wasteful number, since it uses less digits than its factorization.

128084799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26189.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 128084799 is about 11317.4555002439. The cubic root of 128084799 is about 504.0796871040.

The spelling of 128084799 in words is "one hundred twenty-eight million, eighty-four thousand, seven hundred ninety-nine".