127928 has 8 divisors (see below), whose sum is σ = 239880. Its totient is φ = 63960.

The previous prime is 127921. The next prime is 127931. The reversal of 127928 is 829721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 127928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7988 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (29985).

2¹²⁷⁹²⁸ is an apocalyptic number.

It is an amenable number.

127928 is a deficient number, since it is larger than the sum of its proper divisors (111952).

127928 is a wasteful number, since it uses less digits than its factorization.

127928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997 (or 15993 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 127928 is about 357.6702391869. The cubic root of 127928 is about 50.3873908156.

The spelling of 127928 in words is "one hundred twenty-seven thousand, nine hundred twenty-eight".