447240047 has 2 divisors, whose sum is σ = 447240048. Its totient is φ = 447240046.

The previous prime is 447240043. The next prime is 447240077. The reversal of 447240047 is 740042744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447240047 - 2² = 447240043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 447239995 and 447240022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447240043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223620023 + 223620024.

It is an arithmetic number, because the mean of its divisors is an integer number (223620024).

Almost surely, 2^447240047 is an apocalyptic number.

447240047 is a deficient number, since it is larger than the sum of its proper divisors (1).

447240047 is an equidigital number, since it uses as much as digits as its factorization.

447240047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 447240047 is about 21148.0506666690. The cubic root of 447240047 is about 764.7395681774.

The spelling of 447240047 in words is "four hundred forty-seven million, two hundred forty thousand, forty-seven".