447047705 has 8 divisors (see below), whose sum is σ = 577723272. Its totient is φ = 330127488.

The previous prime is 447047701. The next prime is 447047749. The reversal of 447047705 is 507740744.

It can be written as a sum of positive squares in 4 ways, for example, as 90706576 + 356341129 = 9524^2 + 18877^2 .

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 447047705 - 2² = 447047701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447047701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3438764 + ... + 3438893.

It is an arithmetic number, because the mean of its divisors is an integer number (72215409).

Almost surely, 2^447047705 is an apocalyptic number.

It is an amenable number.

447047705 is a deficient number, since it is larger than the sum of its proper divisors (130675567).

447047705 is a wasteful number, since it uses less digits than its factorization.

447047705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877675.

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 447047705 is about 21143.5026663039. The cubic root of 447047705 is about 764.6299233828.

The spelling of 447047705 in words is "four hundred forty-seven million, forty-seven thousand, seven hundred five".