127930489 has 2 divisors, whose sum is σ = 127930490. Its totient is φ = 127930488.

The previous prime is 127930441. The next prime is 127930501. The reversal of 127930489 is 984039721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 34904464 = 9645^2 + 5908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127930489 is a prime.

It is not a weakly prime, because it can be changed into another prime (127930409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63965244 + 63965245.

It is an arithmetic number, because the mean of its divisors is an integer number (63965245).

Almost surely, 2^127930489 is an apocalyptic number.

It is an amenable number.

127930489 is a deficient number, since it is larger than the sum of its proper divisors (1).

127930489 is an equidigital number, since it uses as much as digits as its factorization.

127930489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 127930489 is about 11310.6361005913. The cubic root of 127930489 is about 503.8771759682.

The spelling of 127930489 in words is "one hundred twenty-seven million, nine hundred thirty thousand, four hundred eighty-nine".