448007491 has 2 divisors, whose sum is σ = 448007492. Its totient is φ = 448007490.

The previous prime is 448007489. The next prime is 448007503. The reversal of 448007491 is 194700844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448007491 - 2¹ = 448007489 is a prime.

Together with 448007489, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 448007491.

It is not a weakly prime, because it can be changed into another prime (448007471) 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, 224003745 + 224003746.

It is an arithmetic number, because the mean of its divisors is an integer number (224003746).

Almost surely, 2^448007491 is an apocalyptic number.

448007491 is a deficient number, since it is larger than the sum of its proper divisors (1).

448007491 is an equidigital number, since it uses as much as digits as its factorization.

448007491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 448007491 is about 21166.1874460187. The cubic root of 448007491 is about 765.1767378969.

The spelling of 448007491 in words is "four hundred forty-eight million, seven thousand, four hundred ninety-one".