447863 has 8 divisors (see below), whose sum is σ = 493248. Its totient is φ = 404064.

The previous prime is 447859. The next prime is 447877. The reversal of 447863 is 368744.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 447863 - 2² = 447859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 447863.

It is not an unprimeable number, because it can be changed into a prime (447823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (61656).

2⁴⁴⁷⁸⁶³ is an apocalyptic number.

447863 is a deficient number, since it is larger than the sum of its proper divisors (45385).

447863 is a wasteful number, since it uses less digits than its factorization.

447863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its digits is 16128, while the sum is 32.

The square root of 447863 is about 669.2256719523. The cubic root of 447863 is about 76.5094467665.

The spelling of 447863 in words is "four hundred forty-seven thousand, eight hundred sixty-three".