127730866 has 16 divisors (see below), whose sum is σ = 196251264. Its totient is φ = 62321904.

The previous prime is 127730851. The next prime is 127730909. The reversal of 127730866 is 668037721.

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 7 ways as a sum of consecutive naturals, for example, 33241 + ... + 36883.

It is an arithmetic number, because the mean of its divisors is an integer number (12265704).

Almost surely, 2^127730866 is an apocalyptic number.

127730866 is a deficient number, since it is larger than the sum of its proper divisors (68520398).

127730866 is a wasteful number, since it uses less digits than its factorization.

127730866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 127730866 is about 11301.8080854348. The cubic root of 127730866 is about 503.6149558683.

The spelling of 127730866 in words is "one hundred twenty-seven million, seven hundred thirty thousand, eight hundred sixty-six".