8448399 has 24 divisors (see below), whose sum is σ = 12759552. Its totient is φ = 5380560.

The previous prime is 8448397. The next prime is 8448403. The reversal of 8448399 is 9938448.

It is a happy number.

8448399 is a `hidden beast` number, since 84 + 483 + 99 = 666.

It is not a de Polignac number, because 8448399 - 2¹ = 8448397 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 4 + 4¹¹ + 8⁷ + 3¹⁰ + 9 + 9³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8448397) 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 23 ways as a sum of consecutive naturals, for example, 29712 + ... + 29994.

It is an arithmetic number, because the mean of its divisors is an integer number (531648).

Almost surely, 2^8448399 is an apocalyptic number.

8448399 is a deficient number, since it is larger than the sum of its proper divisors (4311153).

8448399 is a wasteful number, since it uses less digits than its factorization.

8448399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 8448399 is about 2906.6129773329. The cubic root of 8448399 is about 203.6689411212.

The spelling of 8448399 in words is "eight million, four hundred forty-eight thousand, three hundred ninety-nine".