8448921 has 16 divisors (see below), whose sum is σ = 13480320. Its totient is φ = 5199120.

The previous prime is 8448919. The next prime is 8448931. The reversal of 8448921 is 1298448.

It is not a de Polignac number, because 8448921 - 2¹ = 8448919 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8448931) 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 15 ways as a sum of consecutive naturals, for example, 11685 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (842520).

Almost surely, 2^8448921 is an apocalyptic number.

It is an amenable number.

8448921 is a deficient number, since it is larger than the sum of its proper divisors (5031399).

8448921 is a wasteful number, since it uses less digits than its factorization.

8448921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24093 (or 24087 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 8448921 is about 2906.7027711825. The cubic root of 8448921 is about 203.6731357225.

The spelling of 8448921 in words is "eight million, four hundred forty-eight thousand, nine hundred twenty-one".