448638793 has 2 divisors, whose sum is σ = 448638794. Its totient is φ = 448638792.

The previous prime is 448638791. The next prime is 448638797. The reversal of 448638793 is 397836844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444029184 + 4609609 = 21072^2 + 2147^2 .

It is a cyclic number.

It is not a de Polignac number, because 448638793 - 2¹ = 448638791 is a prime.

Together with 448638791, 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 448638793.

It is not a weakly prime, because it can be changed into another prime (448638791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224319396 + 224319397.

It is an arithmetic number, because the mean of its divisors is an integer number (224319397).

Almost surely, 2^448638793 is an apocalyptic number.

It is an amenable number.

448638793 is a deficient number, since it is larger than the sum of its proper divisors (1).

448638793 is an equidigital number, since it uses as much as digits as its factorization.

448638793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 52.

The square root of 448638793 is about 21181.0951794283. The cubic root of 448638793 is about 765.5359810604.

The spelling of 448638793 in words is "four hundred forty-eight million, six hundred thirty-eight thousand, seven hundred ninety-three".