499984171 has 2 divisors, whose sum is σ = 499984172. Its totient is φ = 499984170.

The previous prime is 499984061. The next prime is 499984181. The reversal of 499984171 is 171489994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499984171 is a prime.

It is not a weakly prime, because it can be changed into another prime (499984181) 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, 249992085 + 249992086.

It is an arithmetic number, because the mean of its divisors is an integer number (249992086).

Almost surely, 2^499984171 is an apocalyptic number.

499984171 is a deficient number, since it is larger than the sum of its proper divisors (1).

499984171 is an equidigital number, since it uses as much as digits as its factorization.

499984171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 499984171 is about 22360.3258249964. The cubic root of 499984171 is about 793.6921502386.

The spelling of 499984171 in words is "four hundred ninety-nine million, nine hundred eighty-four thousand, one hundred seventy-one".