127968587 has 2 divisors, whose sum is σ = 127968588. Its totient is φ = 127968586.

The previous prime is 127968569. The next prime is 127968611. The reversal of 127968587 is 785869721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127968587 - 2⁸ = 127968331 is a prime.

It is not a weakly prime, because it can be changed into another prime (127968557) 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 as a sum of consecutive naturals, namely, 63984293 + 63984294.

It is an arithmetic number, because the mean of its divisors is an integer number (63984294).

Almost surely, 2^127968587 is an apocalyptic number.

127968587 is a deficient number, since it is larger than the sum of its proper divisors (1).

127968587 is an equidigital number, since it uses as much as digits as its factorization.

127968587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 53.

The square root of 127968587 is about 11312.3201422166. The cubic root of 127968587 is about 503.9271896058.

The spelling of 127968587 in words is "one hundred twenty-seven million, nine hundred sixty-eight thousand, five hundred eighty-seven".