127887667 has 2 divisors, whose sum is σ = 127887668. Its totient is φ = 127887666.

The previous prime is 127887653. The next prime is 127887671. The reversal of 127887667 is 766788721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127887667 - 2¹¹ = 127885619 is a prime.

It is not a weakly prime, because it can be changed into another prime (127887607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63943833 + 63943834.

It is an arithmetic number, because the mean of its divisors is an integer number (63943834).

Almost surely, 2^127887667 is an apocalyptic number.

127887667 is a deficient number, since it is larger than the sum of its proper divisors (1).

127887667 is an equidigital number, since it uses as much as digits as its factorization.

127887667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 52.

The square root of 127887667 is about 11308.7429451730. The cubic root of 127887667 is about 503.8209489850.

The spelling of 127887667 in words is "one hundred twenty-seven million, eight hundred eighty-seven thousand, six hundred sixty-seven".