127673669 has 2 divisors, whose sum is σ = 127673670. Its totient is φ = 127673668.

The previous prime is 127673647. The next prime is 127673677. The reversal of 127673669 is 966376721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97752769 + 29920900 = 9887^2 + 5470^2 .

It is an emirp because it is prime and its reverse (966376721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127673669 is a prime.

It is a super-2 number, since 2×127673669² = 32601131511843122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127673269) 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, 63836834 + 63836835.

It is an arithmetic number, because the mean of its divisors is an integer number (63836835).

Almost surely, 2^127673669 is an apocalyptic number.

It is an amenable number.

127673669 is a deficient number, since it is larger than the sum of its proper divisors (1).

127673669 is an equidigital number, since it uses as much as digits as its factorization.

127673669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 127673669 is about 11299.2773662744. The cubic root of 127673669 is about 503.5397728782.

The spelling of 127673669 in words is "one hundred twenty-seven million, six hundred seventy-three thousand, six hundred sixty-nine".