842771 has 2 divisors, whose sum is σ = 842772. Its totient is φ = 842770.

The previous prime is 842767. The next prime is 842791. The reversal of 842771 is 177248.

842771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842771 - 2² = 842767 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421385 + 421386.

It is an arithmetic number, because the mean of its divisors is an integer number (421386).

2⁸⁴²⁷⁷¹ is an apocalyptic number.

842771 is a deficient number, since it is larger than the sum of its proper divisors (1).

842771 is an equidigital number, since it uses as much as digits as its factorization.

842771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 29.

The square root of 842771 is about 918.0255987716. The cubic root of 842771 is about 94.4575175547.

The spelling of 842771 in words is "eight hundred forty-two thousand, seven hundred seventy-one".