447939 has 12 divisors (see below), whose sum is σ = 657072. Its totient is φ = 294000.

The previous prime is 447907. The next prime is 447943. The reversal of 447939 is 939744.

It is not a de Polignac number, because 447939 - 2⁵ = 447907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447439) 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 11 ways as a sum of consecutive naturals, for example, 289 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (54756).

2⁴⁴⁷⁹³⁹ is an apocalyptic number.

447939 is a deficient number, since it is larger than the sum of its proper divisors (209133).

447939 is a wasteful number, since it uses less digits than its factorization.

447939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 775 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 447939 is about 669.2824515853. The cubic root of 447939 is about 76.5137742722.

The spelling of 447939 in words is "four hundred forty-seven thousand, nine hundred thirty-nine".