838882139 has 2 divisors, whose sum is σ = 838882140. Its totient is φ = 838882138.

The previous prime is 838882133. The next prime is 838882157. The reversal of 838882139 is 931288838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838882139 - 2²⁸ = 570446683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (838882133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419441069 + 419441070.

It is an arithmetic number, because the mean of its divisors is an integer number (419441070).

Almost surely, 2^838882139 is an apocalyptic number.

838882139 is a deficient number, since it is larger than the sum of its proper divisors (1).

838882139 is an equidigital number, since it uses as much as digits as its factorization.

838882139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 50.

The square root of 838882139 is about 28963.4621376658. The cubic root of 838882139 is about 943.1200605678.

The spelling of 838882139 in words is "eight hundred thirty-eight million, eight hundred eighty-two thousand, one hundred thirty-nine".