449619773 has 2 divisors, whose sum is σ = 449619774. Its totient is φ = 449619772.

The previous prime is 449619767. The next prime is 449619811. The reversal of 449619773 is 377916944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339222724 + 110397049 = 18418^2 + 10507^2 .

It is a cyclic number.

It is not a de Polignac number, because 449619773 - 2⁸ = 449619517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449619713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224809886 + 224809887.

It is an arithmetic number, because the mean of its divisors is an integer number (224809887).

Almost surely, 2^449619773 is an apocalyptic number.

It is an amenable number.

449619773 is a deficient number, since it is larger than the sum of its proper divisors (1).

449619773 is an equidigital number, since it uses as much as digits as its factorization.

449619773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 449619773 is about 21204.2395053442. The cubic root of 449619773 is about 766.0935408085.

The spelling of 449619773 in words is "four hundred forty-nine million, six hundred nineteen thousand, seven hundred seventy-three".