447318645 has 16 divisors (see below), whose sum is σ = 716841792. Its totient is φ = 238192640.

The previous prime is 447318643. The next prime is 447318659. The reversal of 447318645 is 546813744.

It is not a de Polignac number, because 447318645 - 2¹ = 447318643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447318597 and 447318606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447318643) 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, 13647 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (44802612).

Almost surely, 2^447318645 is an apocalyptic number.

It is an amenable number.

447318645 is a deficient number, since it is larger than the sum of its proper divisors (269523147).

447318645 is a wasteful number, since it uses less digits than its factorization.

447318645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47172.

The product of its digits is 322560, while the sum is 42.

The square root of 447318645 is about 21149.9088650519. The cubic root of 447318645 is about 764.7843640167.

The spelling of 447318645 in words is "four hundred forty-seven million, three hundred eighteen thousand, six hundred forty-five".