838729733 has 2 divisors, whose sum is σ = 838729734. Its totient is φ = 838729732.

The previous prime is 838729709. The next prime is 838729747. The reversal of 838729733 is 337927838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783048289 + 55681444 = 27983^2 + 7462^2 .

It is a cyclic number.

It is not a de Polignac number, because 838729733 - 2⁶ = 838729669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838729763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419364866 + 419364867.

It is an arithmetic number, because the mean of its divisors is an integer number (419364867).

Almost surely, 2^838729733 is an apocalyptic number.

It is an amenable number.

838729733 is a deficient number, since it is larger than the sum of its proper divisors (1).

838729733 is an equidigital number, since it uses as much as digits as its factorization.

838729733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 838729733 is about 28960.8310136294. The cubic root of 838729733 is about 943.0629425474.

The spelling of 838729733 in words is "eight hundred thirty-eight million, seven hundred twenty-nine thousand, seven hundred thirty-three".