492985811 has 2 divisors, whose sum is σ = 492985812. Its totient is φ = 492985810.

The previous prime is 492985781. The next prime is 492985813. The reversal of 492985811 is 118589294.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 492985811 - 2¹⁴ = 492969427 is a prime.

Together with 492985813, 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 (492985813) 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, 246492905 + 246492906.

It is an arithmetic number, because the mean of its divisors is an integer number (246492906).

Almost surely, 2^492985811 is an apocalyptic number.

492985811 is a deficient number, since it is larger than the sum of its proper divisors (1).

492985811 is an equidigital number, since it uses as much as digits as its factorization.

492985811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 47.

The square root of 492985811 is about 22203.2837886651. The cubic root of 492985811 is about 789.9715906036.

The spelling of 492985811 in words is "four hundred ninety-two million, nine hundred eighty-five thousand, eight hundred eleven".