485813791 has 2 divisors, whose sum is σ = 485813792. Its totient is φ = 485813790.

The previous prime is 485813789. The next prime is 485813813. The reversal of 485813791 is 197318584.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 485813791 - 2¹ = 485813789 is a prime.

It is a super-5 number, since 5×485813791⁵ (a number of 45 digits) contains 55555 as substring.

Together with 485813789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485813701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242906895 + 242906896.

It is an arithmetic number, because the mean of its divisors is an integer number (242906896).

Almost surely, 2^485813791 is an apocalyptic number.

485813791 is a deficient number, since it is larger than the sum of its proper divisors (1).

485813791 is an equidigital number, since it uses as much as digits as its factorization.

485813791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 46.

The square root of 485813791 is about 22041.1839745509. The cubic root of 485813791 is about 786.1219927537.

The spelling of 485813791 in words is "four hundred eighty-five million, eight hundred thirteen thousand, seven hundred ninety-one".