448621 has 4 divisors (see below), whose sum is σ = 451744. Its totient is φ = 445500.

The previous prime is 448607. The next prime is 448627. The reversal of 448621 is 126844.

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 a de Polignac number, because none of the positive numbers 2^k-448621 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 (448627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (112936).

2⁴⁴⁸⁶²¹ is an apocalyptic number.

It is an amenable number.

448621 is a deficient number, since it is larger than the sum of its proper divisors (3123).

448621 is a wasteful number, since it uses less digits than its factorization.

448621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122.

The product of its digits is 1536, while the sum is 25.

The square root of 448621 is about 669.7917586832. The cubic root of 448621 is about 76.5525860549.

The spelling of 448621 in words is "four hundred forty-eight thousand, six hundred twenty-one".