447865449 has 4 divisors (see below), whose sum is σ = 597153936. Its totient is φ = 298576964.

The previous prime is 447865447. The next prime is 447865471. The reversal of 447865449 is 944568744.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447865449 - 2¹ = 447865447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447865441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74644239 + ... + 74644244.

It is an arithmetic number, because the mean of its divisors is an integer number (149288484).

Almost surely, 2^447865449 is an apocalyptic number.

It is an amenable number.

447865449 is a deficient number, since it is larger than the sum of its proper divisors (149288487).

447865449 is a wasteful number, since it uses less digits than its factorization.

447865449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149288486.

The product of its digits is 3870720, while the sum is 51.

The square root of 447865449 is about 21162.8317812149. The cubic root of 447865449 is about 765.0958622234.

The spelling of 447865449 in words is "four hundred forty-seven million, eight hundred sixty-five thousand, four hundred forty-nine".