842834393 has 2 divisors, whose sum is σ = 842834394. Its totient is φ = 842834392.

The previous prime is 842834387. The next prime is 842834431. The reversal of 842834393 is 393438248.

842834393 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., 680322889 + 162511504 = 26083^2 + 12748^2 .

It is a cyclic number.

It is not a de Polignac number, because 842834393 - 2⁶ = 842834329 is a prime.

It is a super-3 number, since 3×842834393³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (842834323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421417196 + 421417197.

It is an arithmetic number, because the mean of its divisors is an integer number (421417197).

Almost surely, 2^842834393 is an apocalyptic number.

It is an amenable number.

842834393 is a deficient number, since it is larger than the sum of its proper divisors (1).

842834393 is an equidigital number, since it uses as much as digits as its factorization.

842834393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 44.

The square root of 842834393 is about 29031.6102378080. The cubic root of 842834393 is about 944.5988585135.

The spelling of 842834393 in words is "eight hundred forty-two million, eight hundred thirty-four thousand, three hundred ninety-three".