447813 has 6 divisors (see below), whose sum is σ = 646854. Its totient is φ = 298536.

The previous prime is 447793. The next prime is 447817. The reversal of 447813 is 318744.

It can be written as a sum of positive squares in only one way, i.e., 248004 + 199809 = 498^2 + 447^2 .

It is not a de Polignac number, because 447813 - 2⁶ = 447749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24870 + ... + 24887.

It is an arithmetic number, because the mean of its divisors is an integer number (107809).

2⁴⁴⁷⁸¹³ is an apocalyptic number.

It is an amenable number.

447813 is a deficient number, since it is larger than the sum of its proper divisors (199041).

447813 is a wasteful number, since it uses less digits than its factorization.

447813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49763 (or 49760 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 447813 is about 669.1883143032. The cubic root of 447813 is about 76.5065994563.

The spelling of 447813 in words is "four hundred forty-seven thousand, eight hundred thirteen".