448890569 has 2 divisors, whose sum is σ = 448890570. Its totient is φ = 448890568.

The previous prime is 448890551. The next prime is 448890581. The reversal of 448890569 is 965098844.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448888969 + 1600 = 21187^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 448890569 - 2¹⁶ = 448825033 is a prime.

It is a super-2 number, since 2×448890569² = 403005485874287522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 448890569.

It is not a weakly prime, because it can be changed into another prime (448890269) 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, 224445284 + 224445285.

It is an arithmetic number, because the mean of its divisors is an integer number (224445285).

Almost surely, 2^448890569 is an apocalyptic number.

It is an amenable number.

448890569 is a deficient number, since it is larger than the sum of its proper divisors (1).

448890569 is an equidigital number, since it uses as much as digits as its factorization.

448890569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The square root of 448890569 is about 21187.0377589695. The cubic root of 448890569 is about 765.6791604923.

The spelling of 448890569 in words is "four hundred forty-eight million, eight hundred ninety thousand, five hundred sixty-nine".