1071871 has 2 divisors, whose sum is σ = 1071872. Its totient is φ = 1071870.

The previous prime is 1071857. The next prime is 1071899. The reversal of 1071871 is 1781701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1071871 - 2⁷ = 1071743 is a prime.

It is a super-2 number, since 2×1071871² = 2297814881282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071821) 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, 535935 + 535936.

It is an arithmetic number, because the mean of its divisors is an integer number (535936).

2^1071871 is an apocalyptic number.

1071871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071871 is an equidigital number, since it uses as much as digits as its factorization.

1071871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 25.

The square root of 1071871 is about 1035.3120302595. The cubic root of 1071871 is about 102.3404935331.

The spelling of 1071871 in words is "one million, seventy-one thousand, eight hundred seventy-one".