8199091 has 2 divisors, whose sum is σ = 8199092. Its totient is φ = 8199090.

The previous prime is 8199077. The next prime is 8199101. The reversal of 8199091 is 1909918.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8199091 - 2⁷ = 8198963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8199091.

It is not a weakly prime, because it can be changed into another prime (8199001) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099545 + 4099546.

It is an arithmetic number, because the mean of its divisors is an integer number (4099546).

Almost surely, 2^8199091 is an apocalyptic number.

8199091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8199091 is an equidigital number, since it uses as much as digits as its factorization.

8199091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 8199091 is about 2863.4054899717. The cubic root of 8199091 is about 201.6455159234.

The spelling of 8199091 in words is "eight million, one hundred ninety-nine thousand, ninety-one".