485287811 has 2 divisors, whose sum is σ = 485287812. Its totient is φ = 485287810.

The previous prime is 485287807. The next prime is 485287813. The reversal of 485287811 is 118782584.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 485287811 - 2² = 485287807 is a prime.

It is a Sophie Germain prime.

Together with 485287813, 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 (485287813) 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, 242643905 + 242643906.

It is an arithmetic number, because the mean of its divisors is an integer number (242643906).

Almost surely, 2^485287811 is an apocalyptic number.

485287811 is a deficient number, since it is larger than the sum of its proper divisors (1).

485287811 is an equidigital number, since it uses as much as digits as its factorization.

485287811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 44.

The square root of 485287811 is about 22029.2489885606. The cubic root of 485287811 is about 785.8381845905.

The spelling of 485287811 in words is "four hundred eighty-five million, two hundred eighty-seven thousand, eight hundred eleven".