842169 has 8 divisors (see below), whose sum is σ = 1127520. Its totient is φ = 559136.

The previous prime is 842167. The next prime is 842173. The reversal of 842169 is 961248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 842169 - 2¹ = 842167 is a prime.

It is a super-2 number, since 2×842169² = 1418497249122, which contains 22 as substring.

842169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (842161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (140940).

2⁸⁴²¹⁶⁹ is an apocalyptic number.

It is an amenable number.

842169 is a deficient number, since it is larger than the sum of its proper divisors (285351).

842169 is a wasteful number, since it uses less digits than its factorization.

842169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its digits is 3456, while the sum is 30.

The square root of 842169 is about 917.6976626319. The cubic root of 842169 is about 94.4350215384.

The spelling of 842169 in words is "eight hundred forty-two thousand, one hundred sixty-nine".