447141745 has 8 divisors (see below), whose sum is σ = 536749416. Its totient is φ = 357593856.

The previous prime is 447141743. The next prime is 447141757. The reversal of 447141745 is 547141744.

It can be written as a sum of positive squares in 4 ways, for example, as 97002801 + 350138944 = 9849^2 + 18712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447141745 - 2¹ = 447141743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447141743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3609 + ... + 30121.

It is an arithmetic number, because the mean of its divisors is an integer number (67093677).

Almost surely, 2^447141745 is an apocalyptic number.

It is an amenable number.

447141745 is a deficient number, since it is larger than the sum of its proper divisors (89607671).

447141745 is a wasteful number, since it uses less digits than its factorization.

447141745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29891.

The product of its digits is 62720, while the sum is 37.

The square root of 447141745 is about 21145.7264003864. The cubic root of 447141745 is about 764.6835349294.

Subtracting 447141745 from its reverse (547141744), we obtain a palindrome (99999999).

The spelling of 447141745 in words is "four hundred forty-seven million, one hundred forty-one thousand, seven hundred forty-five".