847413139 has 2 divisors, whose sum is σ = 847413140. Its totient is φ = 847413138.

The previous prime is 847413137. The next prime is 847413163. The reversal of 847413139 is 931314748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 847413139 - 2¹ = 847413137 is a prime.

Together with 847413137, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (847413137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423706569 + 423706570.

It is an arithmetic number, because the mean of its divisors is an integer number (423706570).

Almost surely, 2^847413139 is an apocalyptic number.

847413139 is a deficient number, since it is larger than the sum of its proper divisors (1).

847413139 is an equidigital number, since it uses as much as digits as its factorization.

847413139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 847413139 is about 29110.3613684200. The cubic root of 847413139 is about 946.3062994039.

The spelling of 847413139 in words is "eight hundred forty-seven million, four hundred thirteen thousand, one hundred thirty-nine".