838768871 has 2 divisors, whose sum is σ = 838768872. Its totient is φ = 838768870.

The previous prime is 838768837. The next prime is 838768897. The reversal of 838768871 is 178867838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838768871 - 2¹⁴ = 838752487 is a prime.

It is a super-2 number, since 2×838768871² = 1407066437917229282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838761871) 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 as a sum of consecutive naturals, namely, 419384435 + 419384436.

It is an arithmetic number, because the mean of its divisors is an integer number (419384436).

Almost surely, 2^838768871 is an apocalyptic number.

838768871 is a deficient number, since it is larger than the sum of its proper divisors (1).

838768871 is an equidigital number, since it uses as much as digits as its factorization.

838768871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 56.

The square root of 838768871 is about 28961.5067114955. The cubic root of 838768871 is about 943.0776111674.

The spelling of 838768871 in words is "eight hundred thirty-eight million, seven hundred sixty-eight thousand, eight hundred seventy-one".