842392169 has 2 divisors, whose sum is σ = 842392170. Its totient is φ = 842392168.

The previous prime is 842392163. The next prime is 842392183. The reversal of 842392169 is 961293248.

842392169 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 can be written as a sum of positive squares in only one way, i.e., 840304144 + 2088025 = 28988^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 842392169 - 2⁴ = 842392153 is a prime.

It is a super-2 number, since 2×842392169² = 1419249132785049122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842392163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421196084 + 421196085.

It is an arithmetic number, because the mean of its divisors is an integer number (421196085).

Almost surely, 2^842392169 is an apocalyptic number.

It is an amenable number.

842392169 is a deficient number, since it is larger than the sum of its proper divisors (1).

842392169 is an equidigital number, since it uses as much as digits as its factorization.

842392169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 842392169 is about 29023.9929885603. The cubic root of 842392169 is about 944.4336234572.

The spelling of 842392169 in words is "eight hundred forty-two million, three hundred ninety-two thousand, one hundred sixty-nine".