447478 has 8 divisors (see below), whose sum is σ = 689472. Its totient is φ = 217656.

The previous prime is 447467. The next prime is 447481. The reversal of 447478 is 874744.

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

It is a congruent number.

It is an unprimeable number.

447478 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, 2950 + ... + 3097.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2⁴⁴⁷⁴⁷⁸ is an apocalyptic number.

447478 is a deficient number, since it is larger than the sum of its proper divisors (241994).

447478 is a wasteful number, since it uses less digits than its factorization.

447478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086.

The product of its digits is 25088, while the sum is 34.

The square root of 447478 is about 668.9379642388. The cubic root of 447478 is about 76.4875170086.

The spelling of 447478 in words is "four hundred forty-seven thousand, four hundred seventy-eight".