447427 has 2 divisors, whose sum is σ = 447428. Its totient is φ = 447426.

The previous prime is 447409. The next prime is 447439. The reversal of 447427 is 724744.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447427 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 447395 and 447404.

It is not a weakly prime, because it can be changed into another prime (447467) 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, 223713 + 223714.

It is an arithmetic number, because the mean of its divisors is an integer number (223714).

2⁴⁴⁷⁴²⁷ is an apocalyptic number.

447427 is a deficient number, since it is larger than the sum of its proper divisors (1).

447427 is an equidigital number, since it uses as much as digits as its factorization.

447427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 28.

The square root of 447427 is about 668.8998430258. The cubic root of 447427 is about 76.4846110843.

The spelling of 447427 in words is "four hundred forty-seven thousand, four hundred twenty-seven", and thus it is an iban number.