447385 has 4 divisors (see below), whose sum is σ = 536868. Its totient is φ = 357904.

The previous prime is 447353. The next prime is 447401. The reversal of 447385 is 583744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47961 + 399424 = 219^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 447385 - 2⁵ = 447353 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 44734 + ... + 44743.

It is an arithmetic number, because the mean of its divisors is an integer number (134217).

2⁴⁴⁷³⁸⁵ is an apocalyptic number.

It is an amenable number.

447385 is a deficient number, since it is larger than the sum of its proper divisors (89483).

447385 is an equidigital number, since it uses as much as digits as its factorization.

447385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89482.

The product of its digits is 13440, while the sum is 31.

The square root of 447385 is about 668.8684474544. The cubic root of 447385 is about 76.4822178043.

The spelling of 447385 in words is "four hundred forty-seven thousand, three hundred eighty-five".