838893841 has 2 divisors, whose sum is σ = 838893842. Its totient is φ = 838893840.

The previous prime is 838893793. The next prime is 838893851. The reversal of 838893841 is 148398838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811110400 + 27783441 = 28480^2 + 5271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838893841 is a prime.

It is not a weakly prime, because it can be changed into another prime (838893851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419446920 + 419446921.

It is an arithmetic number, because the mean of its divisors is an integer number (419446921).

Almost surely, 2^838893841 is an apocalyptic number.

It is an amenable number.

838893841 is a deficient number, since it is larger than the sum of its proper divisors (1).

838893841 is an equidigital number, since it uses as much as digits as its factorization.

838893841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 52.

The square root of 838893841 is about 28963.6641501037. The cubic root of 838893841 is about 943.1244459036.

The spelling of 838893841 in words is "eight hundred thirty-eight million, eight hundred ninety-three thousand, eight hundred forty-one".