8099591 has 4 divisors (see below), whose sum is σ = 8297184. Its totient is φ = 7902000.

The previous prime is 8099573. The next prime is 8099603. The reversal of 8099591 is 1959908.

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 8099591 - 2⁶ = 8099527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 197551 = 8099591 / (8 + 0 + 9 + 9 + 5 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8099521) 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, 98735 + ... + 98816.

It is an arithmetic number, because the mean of its divisors is an integer number (2074296).

Almost surely, 2^8099591 is an apocalyptic number.

8099591 is a deficient number, since it is larger than the sum of its proper divisors (197593).

8099591 is a wasteful number, since it uses less digits than its factorization.

8099591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197592.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 8099591 is about 2845.9780392688. The cubic root of 8099591 is about 200.8265047446.

The spelling of 8099591 in words is "eight million, ninety-nine thousand, five hundred ninety-one".