448646213 has 4 divisors (see below), whose sum is σ = 448720800. Its totient is φ = 448571628.

The previous prime is 448646197. The next prime is 448646227. The reversal of 448646213 is 312646844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 448646213 - 2⁴ = 448646197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448646413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27395 + ... + 40592.

It is an arithmetic number, because the mean of its divisors is an integer number (112180200).

Almost surely, 2^448646213 is an apocalyptic number.

It is an amenable number.

448646213 is a deficient number, since it is larger than the sum of its proper divisors (74587).

448646213 is an equidigital number, since it uses as much as digits as its factorization.

448646213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74586.

The product of its digits is 110592, while the sum is 38.

The square root of 448646213 is about 21181.2703348973. The cubic root of 448646213 is about 765.5402014160.

The spelling of 448646213 in words is "four hundred forty-eight million, six hundred forty-six thousand, two hundred thirteen".