994858171 has 2 divisors, whose sum is σ = 994858172. Its totient is φ = 994858170.

The previous prime is 994858159. The next prime is 994858187. The reversal of 994858171 is 171858499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 994858171 - 2⁹ = 994857659 is a prime.

It is not a weakly prime, because it can be changed into another prime (994858121) 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, 497429085 + 497429086.

It is an arithmetic number, because the mean of its divisors is an integer number (497429086).

Almost surely, 2^994858171 is an apocalyptic number.

994858171 is a deficient number, since it is larger than the sum of its proper divisors (1).

994858171 is an equidigital number, since it uses as much as digits as its factorization.

994858171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 52.

The square root of 994858171 is about 31541.3723702695. The cubic root of 994858171 is about 998.2831109791.

The spelling of 994858171 in words is "nine hundred ninety-four million, eight hundred fifty-eight thousand, one hundred seventy-one".