4085811 has 12 divisors (see below), whose sum is σ = 5922592. Its totient is φ = 2714256.

The previous prime is 4085803. The next prime is 4085819. The reversal of 4085811 is 1185804.

It is an interprime number because it is at equal distance from previous prime (4085803) and next prime (4085819).

It is not a de Polignac number, because 4085811 - 2³ = 4085803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4085819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2685 + ... + 3921.

Almost surely, 2^4085811 is an apocalyptic number.

4085811 is a deficient number, since it is larger than the sum of its proper divisors (1836781).

4085811 is a wasteful number, since it uses less digits than its factorization.

4085811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 4085811 is about 2021.3389127012. The cubic root of 4085811 is about 159.8672205698.

The spelling of 4085811 in words is "four million, eighty-five thousand, eight hundred eleven".