842173 has 2 divisors, whose sum is σ = 842174. Its totient is φ = 842172.

The previous prime is 842167. The next prime is 842183. The reversal of 842173 is 371248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770884 + 71289 = 878^2 + 267^2 .

It is a cyclic number.

It is not a de Polignac number, because 842173 - 2⁵ = 842141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842113) 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, 421086 + 421087.

It is an arithmetic number, because the mean of its divisors is an integer number (421087).

2⁸⁴²¹⁷³ is an apocalyptic number.

It is an amenable number.

842173 is a deficient number, since it is larger than the sum of its proper divisors (1).

842173 is an equidigital number, since it uses as much as digits as its factorization.

842173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 842173 is about 917.6998419963. The cubic root of 842173 is about 94.4351710490.

The spelling of 842173 in words is "eight hundred forty-two thousand, one hundred seventy-three".