127798 has 16 divisors (see below), whose sum is σ = 216144. Its totient is φ = 56160.

The previous prime is 127781. The next prime is 127807. The reversal of 127798 is 897721.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 736 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (13509).

2¹²⁷⁷⁹⁸ is an apocalyptic number.

127798 is a deficient number, since it is larger than the sum of its proper divisors (88346).

127798 is a wasteful number, since it uses less digits than its factorization.

127798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its digits is 7056, while the sum is 34.

The square root of 127798 is about 357.4884613523. The cubic root of 127798 is about 50.3703171990.

The spelling of 127798 in words is "one hundred twenty-seven thousand, seven hundred ninety-eight".