838768837 has 2 divisors, whose sum is σ = 838768838. Its totient is φ = 838768836.

The previous prime is 838768783. The next prime is 838768871. The reversal of 838768837 is 738867838.

Together with previous prime (838768783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568297921 + 270470916 = 23839^2 + 16446^2 .

It is a cyclic number.

It is not a de Polignac number, because 838768837 - 2⁷ = 838768709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838768897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419384418 + 419384419.

It is an arithmetic number, because the mean of its divisors is an integer number (419384419).

Almost surely, 2^838768837 is an apocalyptic number.

It is an amenable number.

838768837 is a deficient number, since it is larger than the sum of its proper divisors (1).

838768837 is an equidigital number, since it uses as much as digits as its factorization.

838768837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10838016, while the sum is 58.

The square root of 838768837 is about 28961.5061245095. The cubic root of 838768837 is about 943.0775984247.

Subtracting from 838768837 its reverse (738867838), we obtain a palindrome (99900999).

The spelling of 838768837 in words is "eight hundred thirty-eight million, seven hundred sixty-eight thousand, eight hundred thirty-seven".