459785891 has 2 divisors, whose sum is σ = 459785892. Its totient is φ = 459785890.

The previous prime is 459785863. The next prime is 459785897. The reversal of 459785891 is 198587954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 459785891 - 2¹⁰ = 459784867 is a prime.

It is a super-2 number, since 2×459785891² = 422806131125327762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (459785897) 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, 229892945 + 229892946.

It is an arithmetic number, because the mean of its divisors is an integer number (229892946).

Almost surely, 2^459785891 is an apocalyptic number.

459785891 is a deficient number, since it is larger than the sum of its proper divisors (1).

459785891 is an equidigital number, since it uses as much as digits as its factorization.

459785891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 56.

The square root of 459785891 is about 21442.6185667702. The cubic root of 459785891 is about 771.8244760780.

The spelling of 459785891 in words is "four hundred fifty-nine million, seven hundred eighty-five thousand, eight hundred ninety-one".