4127489 has 2 divisors, whose sum is σ = 4127490. Its totient is φ = 4127488.

The previous prime is 4127479. The next prime is 4127521. The reversal of 4127489 is 9847214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 47089 = 2020^2 + 217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4127489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4127479) 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, 2063744 + 2063745.

It is an arithmetic number, because the mean of its divisors is an integer number (2063745).

Almost surely, 2^4127489 is an apocalyptic number.

It is an amenable number.

4127489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4127489 is an equidigital number, since it uses as much as digits as its factorization.

4127489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 4127489 is about 2031.6222581966. The cubic root of 4127489 is about 160.4089667937.

The spelling of 4127489 in words is "four million, one hundred twenty-seven thousand, four hundred eighty-nine".