447808 has 14 divisors (see below), whose sum is σ = 888746. Its totient is φ = 223872.

The previous prime is 447793. The next prime is 447817. The reversal of 447808 is 808744.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 97344 = 592^2 + 312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 447808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3435 + ... + 3562.

2⁴⁴⁷⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

447808 is a deficient number, since it is larger than the sum of its proper divisors (440938).

447808 is an equidigital number, since it uses as much as digits as its factorization.

447808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 6999 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 447808 is about 669.1845784236. The cubic root of 447808 is about 76.5063147136.

The spelling of 447808 in words is "four hundred forty-seven thousand, eight hundred eight".