6436091 has 2 divisors, whose sum is σ = 6436092. Its totient is φ = 6436090.

The previous prime is 6436063. The next prime is 6436093. The reversal of 6436091 is 1906346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6436091 - 2¹⁰ = 6435067 is a prime.

It is a Sophie Germain prime.

Together with 6436093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6436093) 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, 3218045 + 3218046.

It is an arithmetic number, because the mean of its divisors is an integer number (3218046).

Almost surely, 2^6436091 is an apocalyptic number.

6436091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6436091 is an equidigital number, since it uses as much as digits as its factorization.

6436091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6436091 is about 2536.9452102874. The cubic root of 6436091 is about 186.0118984950.

The spelling of 6436091 in words is "six million, four hundred thirty-six thousand, ninety-one".