448626643 has 2 divisors, whose sum is σ = 448626644. Its totient is φ = 448626642.

The previous prime is 448626631. The next prime is 448626671. The reversal of 448626643 is 346626844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448626643 - 2¹⁷ = 448495571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 448626643.

It is not a weakly prime, because it can be changed into another prime (448626623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224313321 + 224313322.

It is an arithmetic number, because the mean of its divisors is an integer number (224313322).

Almost surely, 2^448626643 is an apocalyptic number.

448626643 is a deficient number, since it is larger than the sum of its proper divisors (1).

448626643 is an equidigital number, since it uses as much as digits as its factorization.

448626643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 43.

The square root of 448626643 is about 21180.8083651215. The cubic root of 448626643 is about 765.5290702699.

The spelling of 448626643 in words is "four hundred forty-eight million, six hundred twenty-six thousand, six hundred forty-three".