447245 has 4 divisors (see below), whose sum is σ = 536700. Its totient is φ = 357792.

The previous prime is 447233. The next prime is 447247. The reversal of 447245 is 542744.

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 276676 + 170569 = 526^2 + 413^2 .

It is a cyclic number.

It is not a de Polignac number, because 447245 - 2¹⁰ = 446221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44720 + ... + 44729.

It is an arithmetic number, because the mean of its divisors is an integer number (134175).

2⁴⁴⁷²⁴⁵ is an apocalyptic number.

It is an amenable number.

447245 is a deficient number, since it is larger than the sum of its proper divisors (89455).

447245 is an equidigital number, since it uses as much as digits as its factorization.

447245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89454.

The product of its digits is 4480, while the sum is 26.

The square root of 447245 is about 668.7637849047. The cubic root of 447245 is about 76.4742391226.

Adding to 447245 its product of digits (4480), we get a triangular number (451725 = T₉₅₀).

Adding to 447245 its reverse (542744), we get a palindrome (989989).

The spelling of 447245 in words is "four hundred forty-seven thousand, two hundred forty-five".