128427367 has 16 divisors (see below), whose sum is σ = 138741120. Its totient is φ = 118444032.

The previous prime is 128427361. The next prime is 128427379. The reversal of 128427367 is 763724821.

It is not a de Polignac number, because 128427367 - 2²³ = 120038759 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 (128427361) 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 15 ways as a sum of consecutive naturals, for example, 296383 + ... + 296815.

It is an arithmetic number, because the mean of its divisors is an integer number (8671320).

Almost surely, 2^128427367 is an apocalyptic number.

128427367 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128427367 is a deficient number, since it is larger than the sum of its proper divisors (10313753).

128427367 is a wasteful number, since it uses less digits than its factorization.

128427367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 112896, while the sum is 40.

The square root of 128427367 is about 11332.5798916222. The cubic root of 128427367 is about 504.5286809268.

The spelling of 128427367 in words is "one hundred twenty-eight million, four hundred twenty-seven thousand, three hundred sixty-seven".