447287109 has 32 divisors (see below), whose sum is σ = 625121280. Its totient is φ = 284266752.

The previous prime is 447287069. The next prime is 447287131. The reversal of 447287109 is 901782744.

It is a happy number.

It is not a de Polignac number, because 447287109 - 2⁹ = 447286597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447285109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067302 + ... + 1067720.

It is an arithmetic number, because the mean of its divisors is an integer number (19535040).

Almost surely, 2^447287109 is an apocalyptic number.

It is an amenable number.

447287109 is a deficient number, since it is larger than the sum of its proper divisors (177834171).

447287109 is a wasteful number, since it uses less digits than its factorization.

447287109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 447287109 is about 21149.1633167840. The cubic root of 447287109 is about 764.7663911416.

The spelling of 447287109 in words is "four hundred forty-seven million, two hundred eighty-seven thousand, one hundred nine".