447829 has 2 divisors, whose sum is σ = 447830. Its totient is φ = 447828.

The previous prime is 447827. The next prime is 447841. The reversal of 447829 is 928744.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 161604 = 535^2 + 402^2 .

It is a cyclic number.

It is not a de Polignac number, because 447829 - 2¹ = 447827 is a prime.

Together with 447827, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 447794 and 447803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223914 + 223915.

It is an arithmetic number, because the mean of its divisors is an integer number (223915).

2⁴⁴⁷⁸²⁹ is an apocalyptic number.

It is an amenable number.

447829 is a deficient number, since it is larger than the sum of its proper divisors (1).

447829 is an equidigital number, since it uses as much as digits as its factorization.

447829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 447829 is about 669.2002689778. The cubic root of 447829 is about 76.5075106186.

The spelling of 447829 in words is "four hundred forty-seven thousand, eight hundred twenty-nine".