839142023 has 2 divisors, whose sum is σ = 839142024. Its totient is φ = 839142022.

The previous prime is 839142019. The next prime is 839142061. The reversal of 839142023 is 320241938.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 839142023 - 2² = 839142019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839142013) 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, 419571011 + 419571012.

It is an arithmetic number, because the mean of its divisors is an integer number (419571012).

Almost surely, 2^839142023 is an apocalyptic number.

839142023 is a deficient number, since it is larger than the sum of its proper divisors (1).

839142023 is an equidigital number, since it uses as much as digits as its factorization.

839142023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 839142023 is about 28967.9482014174. The cubic root of 839142023 is about 943.2174427451.

The spelling of 839142023 in words is "eight hundred thirty-nine million, one hundred forty-two thousand, twenty-three".