447816 has 32 divisors (see below), whose sum is σ = 1146240. Its totient is φ = 145728.

The previous prime is 447793. The next prime is 447817. The reversal of 447816 is 618744.

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 447816.

It is not an unprimeable number, because it can be changed into a prime (447817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (35820).

2⁴⁴⁷⁸¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573120).

447816 is an abundant number, since it is smaller than the sum of its proper divisors (698424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447816 is a wasteful number, since it uses less digits than its factorization.

447816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 449 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 447816 is about 669.1905558210. The cubic root of 447816 is about 76.5067703009.

The spelling of 447816 in words is "four hundred forty-seven thousand, eight hundred sixteen".