448394647 has 4 divisors (see below), whose sum is σ = 448444080. Its totient is φ = 448345216.

The previous prime is 448394621. The next prime is 448394657. The reversal of 448394647 is 746493844.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 448394647 - 2¹¹ = 448392599 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 448394647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448394657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6763 + ... + 30700.

It is an arithmetic number, because the mean of its divisors is an integer number (112111020).

Almost surely, 2^448394647 is an apocalyptic number.

448394647 is a deficient number, since it is larger than the sum of its proper divisors (49433).

448394647 is a wasteful number, since it uses less digits than its factorization.

448394647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49432.

The product of its digits is 2322432, while the sum is 49.

The square root of 448394647 is about 21175.3310954044. The cubic root of 448394647 is about 765.3970894737.

The spelling of 448394647 in words is "four hundred forty-eight million, three hundred ninety-four thousand, six hundred forty-seven".