839238229 has 2 divisors, whose sum is σ = 839238230. Its totient is φ = 839238228.

The previous prime is 839238193. The next prime is 839238233. The reversal of 839238229 is 922832938.

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., 683038225 + 156200004 = 26135^2 + 12498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-839238229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839238259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419619114 + 419619115.

It is an arithmetic number, because the mean of its divisors is an integer number (419619115).

Almost surely, 2^839238229 is an apocalyptic number.

It is an amenable number.

839238229 is a deficient number, since it is larger than the sum of its proper divisors (1).

839238229 is an equidigital number, since it uses as much as digits as its factorization.

839238229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The square root of 839238229 is about 28969.6087132705. The cubic root of 839238229 is about 943.2534873824.

The spelling of 839238229 in words is "eight hundred thirty-nine million, two hundred thirty-eight thousand, two hundred twenty-nine".