127879663 has 2 divisors, whose sum is σ = 127879664. Its totient is φ = 127879662.

The previous prime is 127879649. The next prime is 127879667. The reversal of 127879663 is 366978721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127879663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127879667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63939831 + 63939832.

It is an arithmetic number, because the mean of its divisors is an integer number (63939832).

Almost surely, 2^127879663 is an apocalyptic number.

127879663 is a deficient number, since it is larger than the sum of its proper divisors (1).

127879663 is an equidigital number, since it uses as much as digits as its factorization.

127879663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 127879663 is about 11308.3890541491. The cubic root of 127879663 is about 503.8104380236.

The spelling of 127879663 in words is "one hundred twenty-seven million, eight hundred seventy-nine thousand, six hundred sixty-three".