1040447 has 2 divisors, whose sum is σ = 1040448. Its totient is φ = 1040446.

The previous prime is 1040419. The next prime is 1040449. The reversal of 1040447 is 7440401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040447 - 2⁸ = 1040191 is a prime.

Together with 1040449, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520223 + 520224.

It is an arithmetic number, because the mean of its divisors is an integer number (520224).

2^1040447 is an apocalyptic number.

1040447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040447 is an equidigital number, since it uses as much as digits as its factorization.

1040447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1040447 is about 1020.0230389555. The cubic root of 1040447 is about 101.3304537597.

Adding to 1040447 its reverse (7440401), we get a palindrome (8480848).

The spelling of 1040447 in words is "one million, forty thousand, four hundred forty-seven".