128427935 has 16 divisors (see below), whose sum is σ = 162514560. Its totient is φ = 97161120.

The previous prime is 128427907. The next prime is 128427953. The reversal of 128427935 is 539724821.

It is not a de Polignac number, because 128427935 - 2¹⁴ = 128411551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128427892 and 128427901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83120 + ... + 84650.

It is an arithmetic number, because the mean of its divisors is an integer number (10157160).

Almost surely, 2^128427935 is an apocalyptic number.

128427935 is a deficient number, since it is larger than the sum of its proper divisors (34086625).

128427935 is a wasteful number, since it uses less digits than its factorization.

128427935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438.

The product of its digits is 120960, while the sum is 41.

The square root of 128427935 is about 11332.6049520841. The cubic root of 128427935 is about 504.5294247243.

The spelling of 128427935 in words is "one hundred twenty-eight million, four hundred twenty-seven thousand, nine hundred thirty-five".