127992679 has 2 divisors, whose sum is σ = 127992680. Its totient is φ = 127992678.

The previous prime is 127992647. The next prime is 127992691. The reversal of 127992679 is 976299721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127992679 - 2⁵ = 127992647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127992619) 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, 63996339 + 63996340.

It is an arithmetic number, because the mean of its divisors is an integer number (63996340).

Almost surely, 2^127992679 is an apocalyptic number.

127992679 is a deficient number, since it is larger than the sum of its proper divisors (1).

127992679 is an equidigital number, since it uses as much as digits as its factorization.

127992679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 127992679 is about 11313.3849488117. The cubic root of 127992679 is about 503.9588115643.

The spelling of 127992679 in words is "one hundred twenty-seven million, nine hundred ninety-two thousand, six hundred seventy-nine".