485988491 has 2 divisors, whose sum is σ = 485988492. Its totient is φ = 485988490.

The previous prime is 485988473. The next prime is 485988497. The reversal of 485988491 is 194889584.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 485988491 - 2⁶ = 485988427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (485988497) 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, 242994245 + 242994246.

It is an arithmetic number, because the mean of its divisors is an integer number (242994246).

Almost surely, 2^485988491 is an apocalyptic number.

485988491 is a deficient number, since it is larger than the sum of its proper divisors (1).

485988491 is an equidigital number, since it uses as much as digits as its factorization.

485988491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 56.

The square root of 485988491 is about 22045.1466540824. The cubic root of 485988491 is about 786.2162120176.

The spelling of 485988491 in words is "four hundred eighty-five million, nine hundred eighty-eight thousand, four hundred ninety-one".