499989827 has 2 divisors, whose sum is σ = 499989828. Its totient is φ = 499989826.

The previous prime is 499989803. The next prime is 499989829. The reversal of 499989827 is 728989994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499989827 - 2²⁶ = 432880963 is a prime.

Together with 499989829, 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 (499989829) 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, 249994913 + 249994914.

It is an arithmetic number, because the mean of its divisors is an integer number (249994914).

Almost surely, 2^499989827 is an apocalyptic number.

499989827 is a deficient number, since it is larger than the sum of its proper divisors (1).

499989827 is an equidigital number, since it uses as much as digits as its factorization.

499989827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 65.

The square root of 499989827 is about 22360.4522986455. The cubic root of 499989827 is about 793.6951430706.

The spelling of 499989827 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred twenty-seven".