447742 has 8 divisors (see below), whose sum is σ = 675432. Its totient is φ = 222600.

The previous prime is 447703. The next prime is 447743. The reversal of 447742 is 247744.

447742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 4 + 4⁸ + 7⁴ + 7⁶ + 4⁹ + 2³ .

It is a self number, because there is not a number n which added to its sum of digits gives 447742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447743) by changing a digit.

447742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (84429).

2⁴⁴⁷⁷⁴² is an apocalyptic number.

447742 is a deficient number, since it is larger than the sum of its proper divisors (227690).

447742 is a wasteful number, since it uses less digits than its factorization.

447742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its digits is 6272, while the sum is 28.

The square root of 447742 is about 669.1352628580. The cubic root of 447742 is about 76.5025559116.

The spelling of 447742 in words is "four hundred forty-seven thousand, seven hundred forty-two", and thus it is an iban number.