9085857479 has 2 divisors, whose sum is σ = 9085857480. Its totient is φ = 9085857478.

The previous prime is 9085857413. The next prime is 9085857497. The reversal of 9085857479 is 9747585809.

Together with next prime (9085857497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9085857479 - 2¹⁶ = 9085791943 is a prime.

It is a super-2 number, since 2×9085857479² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9085857679) 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, 4542928739 + 4542928740.

It is an arithmetic number, because the mean of its divisors is an integer number (4542928740).

Almost surely, 2^9085857479 is an apocalyptic number.

9085857479 is a deficient number, since it is larger than the sum of its proper divisors (1).

9085857479 is an equidigital number, since it uses as much as digits as its factorization.

9085857479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25401600, while the sum is 62.

The square root of 9085857479 is about 95319.7643671028. The cubic root of 9085857479 is about 2086.6773727563.

The spelling of 9085857479 in words is "nine billion, eighty-five million, eight hundred fifty-seven thousand, four hundred seventy-nine".