842311 has 2 divisors, whose sum is σ = 842312. Its totient is φ = 842310.

The previous prime is 842293. The next prime is 842321. The reversal of 842311 is 113248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 842311 - 2⁵ = 842279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421155 + 421156.

It is an arithmetic number, because the mean of its divisors is an integer number (421156).

2⁸⁴²³¹¹ is an apocalyptic number.

842311 is a deficient number, since it is larger than the sum of its proper divisors (1).

842311 is an equidigital number, since it uses as much as digits as its factorization.

842311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 842311 is about 917.7750268993. The cubic root of 842311 is about 94.4403288736.

Adding to 842311 its reverse (113248), we get a palindrome (955559).

The spelling of 842311 in words is "eight hundred forty-two thousand, three hundred eleven".