449819197 has 2 divisors, whose sum is σ = 449819198. Its totient is φ = 449819196.

The previous prime is 449819179. The next prime is 449819219. The reversal of 449819197 is 791918944.

Together with previous prime (449819179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389430756 + 60388441 = 19734^2 + 7771^2 .

It is a cyclic number.

It is not a de Polignac number, because 449819197 - 2¹¹ = 449817149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449819137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224909598 + 224909599.

It is an arithmetic number, because the mean of its divisors is an integer number (224909599).

Almost surely, 2^449819197 is an apocalyptic number.

It is an amenable number.

449819197 is a deficient number, since it is larger than the sum of its proper divisors (1).

449819197 is an equidigital number, since it uses as much as digits as its factorization.

449819197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 52.

The square root of 449819197 is about 21208.9414398739. The cubic root of 449819197 is about 766.2067882422.

The spelling of 449819197 in words is "four hundred forty-nine million, eight hundred nineteen thousand, one hundred ninety-seven".