447913 has 4 divisors (see below), whose sum is σ = 449680. Its totient is φ = 446148.

The previous prime is 447907. The next prime is 447943. The reversal of 447913 is 319744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447913 - 2⁹ = 447401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447943) 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 3 ways as a sum of consecutive naturals, for example, 423 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (112420).

2⁴⁴⁷⁹¹³ is an apocalyptic number.

It is an amenable number.

447913 is a deficient number, since it is larger than the sum of its proper divisors (1767).

447913 is a wasteful number, since it uses less digits than its factorization.

447913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its digits is 3024, while the sum is 28.

The square root of 447913 is about 669.2630275161. The cubic root of 447913 is about 76.5122938649.

Subtracting from 447913 its product of digits (3024), we obtain a square (444889 = 667²).

The spelling of 447913 in words is "four hundred forty-seven thousand, nine hundred thirteen".