842227 has 4 divisors (see below), whose sum is σ = 856096. Its totient is φ = 828360.

The previous prime is 842209. The next prime is 842249. The reversal of 842227 is 722248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842227 - 2¹¹ = 840179 is a prime.

It is an Ulam number.

It is a Duffinian number.

842227 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (842267) 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 in 3 ways as a sum of consecutive naturals, for example, 6843 + ... + 6964.

It is an arithmetic number, because the mean of its divisors is an integer number (214024).

2⁸⁴²²²⁷ is an apocalyptic number.

842227 is a deficient number, since it is larger than the sum of its proper divisors (13869).

842227 is a wasteful number, since it uses less digits than its factorization.

842227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13868.

The product of its digits is 1792, while the sum is 25.

The square root of 842227 is about 917.7292629093. The cubic root of 842227 is about 94.4371893953.

The spelling of 842227 in words is "eight hundred forty-two thousand, two hundred twenty-seven".