43084091 has 2 divisors, whose sum is σ = 43084092. Its totient is φ = 43084090.

The previous prime is 43084087. The next prime is 43084109. The reversal of 43084091 is 19048034.

43084091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (43084109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43084091 - 2² = 43084087 is a prime.

It is equal to p_2609309 and since 43084091 and 2609309 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43084031) 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, 21542045 + 21542046.

It is an arithmetic number, because the mean of its divisors is an integer number (21542046).

Almost surely, 2^43084091 is an apocalyptic number.

43084091 is a deficient number, since it is larger than the sum of its proper divisors (1).

43084091 is an equidigital number, since it uses as much as digits as its factorization.

43084091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 43084091 is about 6563.8472712274. The cubic root of 43084091 is about 350.5680327143.

The spelling of 43084091 in words is "forty-three million, eighty-four thousand, ninety-one".