447649556 has 6 divisors (see below), whose sum is σ = 783386730. Its totient is φ = 223824776.

The previous prime is 447649541. The next prime is 447649561. The reversal of 447649556 is 655946744.

It can be written as a sum of positive squares in only one way, i.e., 446899600 + 749956 = 21140^2 + 866^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55956191 + ... + 55956198.

It is an arithmetic number, because the mean of its divisors is an integer number (130564455).

Almost surely, 2^447649556 is an apocalyptic number.

It is an amenable number.

447649556 is a deficient number, since it is larger than the sum of its proper divisors (335737174).

447649556 is a wasteful number, since it uses less digits than its factorization.

447649556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111912393 (or 111912391 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The square root of 447649556 is about 21157.7304075839. The cubic root of 447649556 is about 764.9729046180.

The spelling of 447649556 in words is "four hundred forty-seven million, six hundred forty-nine thousand, five hundred fifty-six".