8099191 has 4 divisors (see below), whose sum is σ = 8575632. Its totient is φ = 7622752.

The previous prime is 8099173. The next prime is 8099219. The reversal of 8099191 is 1919908.

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

It is a cyclic number.

It is not a de Polignac number, because 8099191 - 2¹¹ = 8097143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8099191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8099141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238195 + ... + 238228.

It is an arithmetic number, because the mean of its divisors is an integer number (2143908).

Almost surely, 2^8099191 is an apocalyptic number.

8099191 is a deficient number, since it is larger than the sum of its proper divisors (476441).

8099191 is a wasteful number, since it uses less digits than its factorization.

8099191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476440.

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

The square root of 8099191 is about 2845.9077637900. The cubic root of 8099191 is about 200.8231987371.

It can be divided in two parts, 809 and 9191, that added together give a 4-th power (10000 = 10⁴).

The spelling of 8099191 in words is "eight million, ninety-nine thousand, one hundred ninety-one".