838793143 has 2 divisors, whose sum is σ = 838793144. Its totient is φ = 838793142.

The previous prime is 838793119. The next prime is 838793173. The reversal of 838793143 is 341397838.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838793143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 838793093 and 838793102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838793173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419396571 + 419396572.

It is an arithmetic number, because the mean of its divisors is an integer number (419396572).

Almost surely, 2^838793143 is an apocalyptic number.

838793143 is a deficient number, since it is larger than the sum of its proper divisors (1).

838793143 is an equidigital number, since it uses as much as digits as its factorization.

838793143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 838793143 is about 28961.9257474361. The cubic root of 838793143 is about 943.0867078963.

The spelling of 838793143 in words is "eight hundred thirty-eight million, seven hundred ninety-three thousand, one hundred forty-three".