842682839 has 2 divisors, whose sum is σ = 842682840. Its totient is φ = 842682838.

The previous prime is 842682833. The next prime is 842682847. The reversal of 842682839 is 938286248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842682839 - 2⁴ = 842682823 is a prime.

It is a super-2 number, since 2×842682839² = 1420228734290199842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842682833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421341419 + 421341420.

It is an arithmetic number, because the mean of its divisors is an integer number (421341420).

Almost surely, 2^842682839 is an apocalyptic number.

842682839 is a deficient number, since it is larger than the sum of its proper divisors (1).

842682839 is an equidigital number, since it uses as much as digits as its factorization.

842682839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 50.

The square root of 842682839 is about 29028.9999655517. Note that the first 4 decimals coincide. The cubic root of 842682839 is about 944.5422375378.

The spelling of 842682839 in words is "eight hundred forty-two million, six hundred eighty-two thousand, eight hundred thirty-nine".