1000047071 has 2 divisors, whose sum is σ = 1000047072. Its totient is φ = 1000047070.

The previous prime is 1000047047. The next prime is 1000047077. The reversal of 1000047071 is 1707400001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000047071 - 2¹⁸ = 999784927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000047077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500023535 + 500023536.

It is an arithmetic number, because the mean of its divisors is an integer number (500023536).

Almost surely, 2^1000047071 is an apocalyptic number.

1000047071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000047071 is an equidigital number, since it uses as much as digits as its factorization.

1000047071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1000047071 is about 31623.5208507845. The cubic root of 1000047071 is about 1000.0156900872.

Adding to 1000047071 its reverse (1707400001), we get a palindrome (2707447072).

The spelling of 1000047071 in words is "one billion, forty-seven thousand, seventy-one".