4085659987 has 2 divisors, whose sum is σ = 4085659988. Its totient is φ = 4085659986.

The previous prime is 4085659969. The next prime is 4085659999. The reversal of 4085659987 is 7899565804.

4085659987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4085659987 - 2¹⁵ = 4085627219 is a prime.

It is not a weakly prime, because it can be changed into another prime (4085659087) 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, 2042829993 + 2042829994.

It is an arithmetic number, because the mean of its divisors is an integer number (2042829994).

Almost surely, 2^4085659987 is an apocalyptic number.

4085659987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085659987 is an equidigital number, since it uses as much as digits as its factorization.

4085659987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The square root of 4085659987 is about 63919.1676025275. The cubic root of 4085659987 is about 1598.6525096278.

The spelling of 4085659987 in words is "four billion, eighty-five million, six hundred fifty-nine thousand, nine hundred eighty-seven".