447445 has 8 divisors (see below), whose sum is σ = 542520. Its totient is φ = 354240.

The previous prime is 447443. The next prime is 447449. The reversal of 447445 is 544744.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 407044 = 201^2 + 638^2 .

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

It is not a de Polignac number, because 447445 - 2¹ = 447443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135 + ... + 955.

It is an arithmetic number, because the mean of its divisors is an integer number (67815).

2⁴⁴⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

447445 is a deficient number, since it is larger than the sum of its proper divisors (95075).

447445 is a wasteful number, since it uses less digits than its factorization.

447445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 8960, while the sum is 28.

The square root of 447445 is about 668.9132978197. The cubic root of 447445 is about 76.4856367298.

The spelling of 447445 in words is "four hundred forty-seven thousand, four hundred forty-five".