448721 has 8 divisors (see below), whose sum is σ = 552384. Its totient is φ = 354960.

The previous prime is 448703. The next prime is 448727. The reversal of 448721 is 127844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 448721 - 2¹⁴ = 432337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (448727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (69048).

2⁴⁴⁸⁷²¹ is an apocalyptic number.

It is an amenable number.

448721 is a deficient number, since it is larger than the sum of its proper divisors (103663).

448721 is a wasteful number, since it uses less digits than its factorization.

448721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951.

The product of its digits is 1792, while the sum is 26.

The square root of 448721 is about 669.8664045912. The cubic root of 448721 is about 76.5582736248.

The spelling of 448721 in words is "four hundred forty-eight thousand, seven hundred twenty-one".