838282839 has 4 divisors (see below), whose sum is σ = 1117710456. Its totient is φ = 558855224.

The previous prime is 838282829. The next prime is 838282859. The reversal of 838282839 is 938282838.

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 838282839 - 2⁹ = 838282327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 838282791 and 838282800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838282829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139713804 + ... + 139713809.

It is an arithmetic number, because the mean of its divisors is an integer number (279427614).

Almost surely, 2^838282839 is an apocalyptic number.

838282839 is a deficient number, since it is larger than the sum of its proper divisors (279427617).

838282839 is a wasteful number, since it uses less digits than its factorization.

838282839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279427616.

The product of its digits is 1327104, while the sum is 51.

The square root of 838282839 is about 28953.1144956808. The cubic root of 838282839 is about 942.8954177660.

Subtracting 838282839 from its reverse (938282838), we obtain a palindrome (99999999).

The spelling of 838282839 in words is "eight hundred thirty-eight million, two hundred eighty-two thousand, eight hundred thirty-nine".