4085987 has 2 divisors, whose sum is σ = 4085988. Its totient is φ = 4085986.

The previous prime is 4085981. The next prime is 4085993. The reversal of 4085987 is 7895804.

It is a balanced prime because it is at equal distance from previous prime (4085981) and next prime (4085993).

It is a cyclic number.

It is not a de Polignac number, because 4085987 - 2⁶ = 4085923 is a prime.

It is not a weakly prime, because it can be changed into another prime (4085981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042993 + 2042994.

It is an arithmetic number, because the mean of its divisors is an integer number (2042994).

Almost surely, 2^4085987 is an apocalyptic number.

4085987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085987 is an equidigital number, since it uses as much as digits as its factorization.

4085987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 4085987 is about 2021.3824477322. The cubic root of 4085987 is about 159.8695160118.

The spelling of 4085987 in words is "four million, eighty-five thousand, nine hundred eighty-seven".