448786321 has 4 divisors (see below), whose sum is σ = 449282032. Its totient is φ = 448290612.

The previous prime is 448786297. The next prime is 448786337. The reversal of 448786321 is 123687844.

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 448786321 - 2¹⁵ = 448753553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448787321) 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, 246495 + ... + 248308.

It is an arithmetic number, because the mean of its divisors is an integer number (112320508).

Almost surely, 2^448786321 is an apocalyptic number.

It is an amenable number.

448786321 is a deficient number, since it is larger than the sum of its proper divisors (495711).

448786321 is an equidigital number, since it uses as much as digits as its factorization.

448786321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495710.

The product of its digits is 258048, while the sum is 43.

The square root of 448786321 is about 21184.5774326513. The cubic root of 448786321 is about 765.6198834610.

It can be divided in two parts, 448 and 786321, that added together give a square (786769 = 887²).

The spelling of 448786321 in words is "four hundred forty-eight million, seven hundred eighty-six thousand, three hundred twenty-one".