839986423 has 2 divisors, whose sum is σ = 839986424. Its totient is φ = 839986422.

The previous prime is 839986387. The next prime is 839986463. The reversal of 839986423 is 324689938.

839986423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 839986423 - 2⁹ = 839985911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839986463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419993211 + 419993212.

It is an arithmetic number, because the mean of its divisors is an integer number (419993212).

Almost surely, 2^839986423 is an apocalyptic number.

839986423 is a deficient number, since it is larger than the sum of its proper divisors (1).

839986423 is an equidigital number, since it uses as much as digits as its factorization.

839986423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The square root of 839986423 is about 28982.5192659299. The cubic root of 839986423 is about 943.5337125334.

The spelling of 839986423 in words is "eight hundred thirty-nine million, nine hundred eighty-six thousand, four hundred twenty-three".