849834431 has 2 divisors, whose sum is σ = 849834432. Its totient is φ = 849834430.

The previous prime is 849834421. The next prime is 849834497. The reversal of 849834431 is 134438948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849834431 is a prime.

It is a super-2 number, since 2×849834431² = 1444437120226187522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849834421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424917215 + 424917216.

It is an arithmetic number, because the mean of its divisors is an integer number (424917216).

Almost surely, 2^849834431 is an apocalyptic number.

849834431 is a deficient number, since it is larger than the sum of its proper divisors (1).

849834431 is an equidigital number, since it uses as much as digits as its factorization.

849834431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 849834431 is about 29151.9198510150. The cubic root of 849834431 is about 947.2067279941.

The spelling of 849834431 in words is "eight hundred forty-nine million, eight hundred thirty-four thousand, four hundred thirty-one".