447287745 has 16 divisors (see below), whose sum is σ = 723703680. Its totient is φ = 235872384.

The previous prime is 447287681. The next prime is 447287749. The reversal of 447287745 is 547782744.

It is not a de Polignac number, because 447287745 - 2⁶ = 447287681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447287694 and 447287703.

It is not an unprimeable number, because it can be changed into a prime (447287749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166189 + ... + 168858.

It is an arithmetic number, because the mean of its divisors is an integer number (45231480).

Almost surely, 2^447287745 is an apocalyptic number.

It is an amenable number.

447287745 is a deficient number, since it is larger than the sum of its proper divisors (276415935).

447287745 is a wasteful number, since it uses less digits than its factorization.

447287745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335144.

The product of its digits is 1756160, while the sum is 48.

The square root of 447287745 is about 21149.1783528344. The cubic root of 447287745 is about 764.7667536166.

The spelling of 447287745 in words is "four hundred forty-seven million, two hundred eighty-seven thousand, seven hundred forty-five".