4085993 has 2 divisors, whose sum is σ = 4085994. Its totient is φ = 4085992.

The previous prime is 4085987. The next prime is 4086011. The reversal of 4085993 is 3995804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4012009 + 73984 = 2003^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 4085993 - 2¹² = 4081897 is a prime.

It is not a weakly prime, because it can be changed into another prime (4085923) 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, 2042996 + 2042997.

It is an arithmetic number, because the mean of its divisors is an integer number (2042997).

Almost surely, 2^4085993 is an apocalyptic number.

It is an amenable number.

4085993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085993 is an equidigital number, since it uses as much as digits as its factorization.

4085993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 4085993 is about 2021.3839318645. The cubic root of 4085993 is about 159.8695942644.

The spelling of 4085993 in words is "four million, eighty-five thousand, nine hundred ninety-three".