4086091 has 2 divisors, whose sum is σ = 4086092. Its totient is φ = 4086090.

The previous prime is 4086073. The next prime is 4086097. The reversal of 4086091 is 1906804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4086091 - 2⁵ = 4086059 is a prime.

It is a super-2 number, since 2×4086091² = 33392279320562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4086097) 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, 2043045 + 2043046.

It is an arithmetic number, because the mean of its divisors is an integer number (2043046).

Almost surely, 2^4086091 is an apocalyptic number.

4086091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4086091 is an equidigital number, since it uses as much as digits as its factorization.

4086091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 4086091 is about 2021.4081725372. The cubic root of 4086091 is about 159.8708723784.

The spelling of 4086091 in words is "four million, eighty-six thousand, ninety-one".