447998439 has 16 divisors (see below), whose sum is σ = 712346112. Its totient is φ = 244868448.

The previous prime is 447998437. The next prime is 447998461. The reversal of 447998439 is 934899744.

It is not a de Polignac number, because 447998439 - 2¹ = 447998437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447998437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463284 + ... + 464249.

It is an arithmetic number, because the mean of its divisors is an integer number (44521632).

Almost surely, 2^447998439 is an apocalyptic number.

447998439 is a deficient number, since it is larger than the sum of its proper divisors (264347673).

447998439 is a wasteful number, since it uses less digits than its factorization.

447998439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927566.

The product of its digits is 7838208, while the sum is 57.

The square root of 447998439 is about 21165.9736133257. The cubic root of 447998439 is about 765.1715843920.

The spelling of 447998439 in words is "four hundred forty-seven million, nine hundred ninety-eight thousand, four hundred thirty-nine".