447799 has 4 divisors (see below), whose sum is σ = 488520. Its totient is φ = 407080.

The previous prime is 447793. The next prime is 447817. The reversal of 447799 is 997744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 447799 - 2³ = 447791 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20344 + ... + 20365.

It is an arithmetic number, because the mean of its divisors is an integer number (122130).

2⁴⁴⁷⁷⁹⁹ is an apocalyptic number.

447799 is a deficient number, since it is larger than the sum of its proper divisors (40721).

447799 is a wasteful number, since it uses less digits than its factorization.

447799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40720.

The product of its digits is 63504, while the sum is 40.

The square root of 447799 is about 669.1778537878. The cubic root of 447799 is about 76.5058021715.

Subtracting 447799 from its reverse (997744), we obtain a palindrome (549945).

The spelling of 447799 in words is "four hundred forty-seven thousand, seven hundred ninety-nine".