8460440489 has 2 divisors, whose sum is σ = 8460440490. Its totient is φ = 8460440488.

The previous prime is 8460440381. The next prime is 8460440537. The reversal of 8460440489 is 9840440648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7799539225 + 660901264 = 88315^2 + 25708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8460440489 is a prime.

It is not a weakly prime, because it can be changed into another prime (8460440089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230220244 + 4230220245.

It is an arithmetic number, because the mean of its divisors is an integer number (4230220245).

Almost surely, 2^8460440489 is an apocalyptic number.

It is an amenable number.

8460440489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8460440489 is an equidigital number, since it uses as much as digits as its factorization.

8460440489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 47.

The square root of 8460440489 is about 91980.6527972051. The cubic root of 8460440489 is about 2037.6565818615.

The spelling of 8460440489 in words is "eight billion, four hundred sixty million, four hundred forty thousand, four hundred eighty-nine".