8066191 has 4 divisors (see below), whose sum is σ = 9218512. Its totient is φ = 6913872.

The previous prime is 8066173. The next prime is 8066207. The reversal of 8066191 is 1916608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8066191 - 2⁹ = 8065679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8066141) 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 in 3 ways as a sum of consecutive naturals, for example, 576150 + ... + 576163.

It is an arithmetic number, because the mean of its divisors is an integer number (2304628).

Almost surely, 2^8066191 is an apocalyptic number.

8066191 is a deficient number, since it is larger than the sum of its proper divisors (1152321).

8066191 is a wasteful number, since it uses less digits than its factorization.

8066191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152320.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 8066191 is about 2840.1040473898. The cubic root of 8066191 is about 200.5500773541.

The spelling of 8066191 in words is "eight million, sixty-six thousand, one hundred ninety-one".