127471977 has 6 divisors (see below), whose sum is σ = 184126202. Its totient is φ = 84981312.

The previous prime is 127471961. The next prime is 127471979. The reversal of 127471977 is 779174721.

It can be written as a sum of positive squares in only one way, i.e., 91183401 + 36288576 = 9549^2 + 6024^2 .

It is not a de Polignac number, because 127471977 - 2⁴ = 127471961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127471979) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 7081768 + ... + 7081785.

Almost surely, 2^127471977 is an apocalyptic number.

It is an amenable number.

127471977 is a deficient number, since it is larger than the sum of its proper divisors (56654225).

127471977 is a wasteful number, since it uses less digits than its factorization.

127471977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14163559 (or 14163556 counting only the distinct ones).

The product of its digits is 172872, while the sum is 45.

The square root of 127471977 is about 11290.3488431492. The cubic root of 127471977 is about 503.2744781067.

The spelling of 127471977 in words is "one hundred twenty-seven million, four hundred seventy-one thousand, nine hundred seventy-seven".