448771969 has 2 divisors, whose sum is σ = 448771970. Its totient is φ = 448771968.

The previous prime is 448771931. The next prime is 448771991. The reversal of 448771969 is 969177844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253191744 + 195580225 = 15912^2 + 13985^2 .

It is a cyclic number.

It is not a de Polignac number, because 448771969 - 2¹⁵ = 448739201 is a prime.

It is a super-2 number, since 2×448771969² = 402792560320273922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448771669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224385984 + 224385985.

It is an arithmetic number, because the mean of its divisors is an integer number (224385985).

Almost surely, 2^448771969 is an apocalyptic number.

It is an amenable number.

448771969 is a deficient number, since it is larger than the sum of its proper divisors (1).

448771969 is an equidigital number, since it uses as much as digits as its factorization.

448771969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 55.

The square root of 448771969 is about 21184.2386929528. The cubic root of 448771969 is about 765.6117219721.

The spelling of 448771969 in words is "four hundred forty-eight million, seven hundred seventy-one thousand, nine hundred sixty-nine".