447316545 has 32 divisors (see below), whose sum is σ = 772531200. Its totient is φ = 219711744.

The previous prime is 447316523. The next prime is 447316553. The reversal of 447316545 is 545613744.

It is a happy number.

It is not a de Polignac number, because 447316545 - 2⁹ = 447316033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91011 + ... + 95799.

It is an arithmetic number, because the mean of its divisors is an integer number (24141600).

Almost surely, 2^447316545 is an apocalyptic number.

It is an amenable number.

447316545 is a deficient number, since it is larger than the sum of its proper divisors (325214655).

447316545 is a wasteful number, since it uses less digits than its factorization.

447316545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its digits is 201600, while the sum is 39.

The square root of 447316545 is about 21149.8592193896. The cubic root of 447316545 is about 764.7831672191.

447316545 divided by its sum of digits (39) gives a triangular number (11469655 = T₄₇₈₉).

The spelling of 447316545 in words is "four hundred forty-seven million, three hundred sixteen thousand, five hundred forty-five".