8091115 has 4 divisors (see below), whose sum is σ = 9709344. Its totient is φ = 6472888.

The previous prime is 8091107. The next prime is 8091119. The reversal of 8091115 is 5111908.

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 8091115 - 2³ = 8091107 is a prime.

It is a super-2 number, since 2×8091115² = 130932283886450, which contains 22 as substring.

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 8091115.

It is not an unprimeable number, because it can be changed into a prime (8091119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809107 + ... + 809116.

It is an arithmetic number, because the mean of its divisors is an integer number (2427336).

Almost surely, 2^8091115 is an apocalyptic number.

8091115 is a deficient number, since it is larger than the sum of its proper divisors (1618229).

8091115 is a wasteful number, since it uses less digits than its factorization.

8091115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618228.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 8091115 is about 2844.4885304743. The cubic root of 8091115 is about 200.7564271497.

The spelling of 8091115 in words is "eight million, ninety-one thousand, one hundred fifteen".