838943093 has 2 divisors, whose sum is σ = 838943094. Its totient is φ = 838943092.

The previous prime is 838943089. The next prime is 838943141. The reversal of 838943093 is 390349838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683142769 + 155800324 = 26137^2 + 12482^2 .

It is a cyclic number.

It is not a de Polignac number, because 838943093 - 2² = 838943089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838943003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419471546 + 419471547.

It is an arithmetic number, because the mean of its divisors is an integer number (419471547).

Almost surely, 2^838943093 is an apocalyptic number.

It is an amenable number.

838943093 is a deficient number, since it is larger than the sum of its proper divisors (1).

838943093 is an equidigital number, since it uses as much as digits as its factorization.

838943093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 838943093 is about 28964.5143753525. The cubic root of 838943093 is about 943.1429026911.

The spelling of 838943093 in words is "eight hundred thirty-eight million, nine hundred forty-three thousand, ninety-three".