4085069 has 2 divisors, whose sum is σ = 4085070. Its totient is φ = 4085068.

The previous prime is 4085051. The next prime is 4085089. The reversal of 4085069 is 9605804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3948169 + 136900 = 1987^2 + 370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4085069 is a prime.

It is a super-2 number, since 2×4085069² = 33375577469522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4085089) 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, 2042534 + 2042535.

It is an arithmetic number, because the mean of its divisors is an integer number (2042535).

Almost surely, 2^4085069 is an apocalyptic number.

It is an amenable number.

4085069 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085069 is an equidigital number, since it uses as much as digits as its factorization.

4085069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 4085069 is about 2021.1553626577. The cubic root of 4085069 is about 159.8575424701.

The spelling of 4085069 in words is "four million, eighty-five thousand, sixty-nine".