447885 has 24 divisors (see below), whose sum is σ = 800280. Its totient is φ = 231552.

The previous prime is 447883. The next prime is 447893. The reversal of 447885 is 588744.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 412164 = 189^2 + 642^2 .

It is not a de Polignac number, because 447885 - 2¹ = 447883 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 447885.

It is not an unprimeable number, because it can be changed into a prime (447883) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1531 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (33345).

2⁴⁴⁷⁸⁸⁵ is an apocalyptic number.

447885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

447885 is a deficient number, since it is larger than the sum of its proper divisors (352395).

447885 is a wasteful number, since it uses less digits than its factorization.

447885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 314 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 447885 is about 669.2421086572. The cubic root of 447885 is about 76.5106995159.

The spelling of 447885 in words is "four hundred forty-seven thousand, eight hundred eighty-five".