447856229 has 4 divisors (see below), whose sum is σ = 451382784. Its totient is φ = 444329676.

The previous prime is 447856219. The next prime is 447856231. The reversal of 447856229 is 922658744.

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 447856229 - 2²⁰ = 446807653 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 (447856219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763087 + ... + 1763340.

It is an arithmetic number, because the mean of its divisors is an integer number (112845696).

Almost surely, 2^447856229 is an apocalyptic number.

It is an amenable number.

447856229 is a deficient number, since it is larger than the sum of its proper divisors (3526555).

447856229 is a wasteful number, since it uses less digits than its factorization.

447856229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526554.

The product of its digits is 967680, while the sum is 47.

The square root of 447856229 is about 21162.6139453518. The cubic root of 447856229 is about 765.0906119618.

The spelling of 447856229 in words is "four hundred forty-seven million, eight hundred fifty-six thousand, two hundred twenty-nine".