842071 has 2 divisors, whose sum is σ = 842072. Its totient is φ = 842070.

The previous prime is 842063. The next prime is 842077. The reversal of 842071 is 170248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 842071 - 2³ = 842063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842077) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421035 + 421036.

It is an arithmetic number, because the mean of its divisors is an integer number (421036).

2⁸⁴²⁰⁷¹ is an apocalyptic number.

842071 is a deficient number, since it is larger than the sum of its proper divisors (1).

842071 is an equidigital number, since it uses as much as digits as its factorization.

842071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 842071 is about 917.6442665870. The cubic root of 842071 is about 94.4313583817.

The spelling of 842071 in words is "eight hundred forty-two thousand, seventy-one".