449989763 has 2 divisors, whose sum is σ = 449989764. Its totient is φ = 449989762.

The previous prime is 449989759. The next prime is 449989849. The reversal of 449989763 is 367989944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449989763 - 2² = 449989759 is a prime.

It is not a weakly prime, because it can be changed into another prime (449989753) 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, 224994881 + 224994882.

It is an arithmetic number, because the mean of its divisors is an integer number (224994882).

Almost surely, 2^449989763 is an apocalyptic number.

449989763 is a deficient number, since it is larger than the sum of its proper divisors (1).

449989763 is an equidigital number, since it uses as much as digits as its factorization.

449989763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 59.

The square root of 449989763 is about 21212.9621458202. The cubic root of 449989763 is about 766.3036214534.

The spelling of 449989763 in words is "four hundred forty-nine million, nine hundred eighty-nine thousand, seven hundred sixty-three".