448864823 has 4 divisors (see below), whose sum is σ = 489670728. Its totient is φ = 408058920.

The previous prime is 448864811. The next prime is 448864837. The reversal of 448864823 is 328468844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 448864823 - 2²² = 444670519 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 (448864883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20402936 + ... + 20402957.

It is an arithmetic number, because the mean of its divisors is an integer number (122417682).

Almost surely, 2^448864823 is an apocalyptic number.

448864823 is a deficient number, since it is larger than the sum of its proper divisors (40805905).

448864823 is a wasteful number, since it uses less digits than its factorization.

448864823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40805904.

The product of its digits is 1179648, while the sum is 47.

The square root of 448864823 is about 21186.4301617804. The cubic root of 448864823 is about 765.6645217705.

The spelling of 448864823 in words is "four hundred forty-eight million, eight hundred sixty-four thousand, eight hundred twenty-three".