127982 has 8 divisors (see below), whose sum is σ = 194400. Its totient is φ = 63184.

The previous prime is 127979. The next prime is 127997. The reversal of 127982 is 289721.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2¹²⁷⁹⁸² is an apocalyptic number.

127982 is a deficient number, since it is larger than the sum of its proper divisors (66418).

127982 is an equidigital number, since it uses as much as digits as its factorization.

127982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

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

The square root of 127982 is about 357.7457197508. The cubic root of 127982 is about 50.3944795331.

The spelling of 127982 in words is "one hundred twenty-seven thousand, nine hundred eighty-two".