448596721 has 2 divisors, whose sum is σ = 448596722. Its totient is φ = 448596720.

The previous prime is 448596649. The next prime is 448596739. The reversal of 448596721 is 127695844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 433472400 + 15124321 = 20820^2 + 3889^2 .

It is a cyclic number.

It is not a de Polignac number, because 448596721 - 2¹¹ = 448594673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448596781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224298360 + 224298361.

It is an arithmetic number, because the mean of its divisors is an integer number (224298361).

Almost surely, 2^448596721 is an apocalyptic number.

It is an amenable number.

448596721 is a deficient number, since it is larger than the sum of its proper divisors (1).

448596721 is an equidigital number, since it uses as much as digits as its factorization.

448596721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 448596721 is about 21180.1020063644. The cubic root of 448596721 is about 765.5120504232.

The spelling of 448596721 in words is "four hundred forty-eight million, five hundred ninety-six thousand, seven hundred twenty-one".