448421 has 2 divisors, whose sum is σ = 448422. Its totient is φ = 448420.

The previous prime is 448397. The next prime is 448451. The reversal of 448421 is 124844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 25921 = 650^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 448421 - 2¹⁴ = 432037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224210 + 224211.

It is an arithmetic number, because the mean of its divisors is an integer number (224211).

2⁴⁴⁸⁴²¹ is an apocalyptic number.

It is an amenable number.

448421 is a deficient number, since it is larger than the sum of its proper divisors (1).

448421 is an equidigital number, since it uses as much as digits as its factorization.

448421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024, while the sum is 23.

The square root of 448421 is about 669.6424419046. The cubic root of 448421 is about 76.5412083791.

The spelling of 448421 in words is "four hundred forty-eight thousand, four hundred twenty-one".