849673427 has 2 divisors, whose sum is σ = 849673428. Its totient is φ = 849673426.

The previous prime is 849673417. The next prime is 849673457. The reversal of 849673427 is 724376948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849673427 is a prime.

It is not a weakly prime, because it can be changed into another prime (849673417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424836713 + 424836714.

It is an arithmetic number, because the mean of its divisors is an integer number (424836714).

Almost surely, 2^849673427 is an apocalyptic number.

849673427 is a deficient number, since it is larger than the sum of its proper divisors (1).

849673427 is an equidigital number, since it uses as much as digits as its factorization.

849673427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The square root of 849673427 is about 29149.1582554282. The cubic root of 849673427 is about 947.1469070461.

The spelling of 849673427 in words is "eight hundred forty-nine million, six hundred seventy-three thousand, four hundred twenty-seven".