8091049 has 4 divisors (see below), whose sum is σ = 8309764. Its totient is φ = 7872336.

The previous prime is 8091047. The next prime is 8091059. The reversal of 8091049 is 9401908.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7601049 + 490000 = 2757^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 8091049 - 2¹ = 8091047 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 8091049.

It is not an unprimeable number, because it can be changed into a prime (8091047) 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, 109302 + ... + 109375.

It is an arithmetic number, because the mean of its divisors is an integer number (2077441).

Almost surely, 2^8091049 is an apocalyptic number.

It is an amenable number.

8091049 is a deficient number, since it is larger than the sum of its proper divisors (218715).

8091049 is a wasteful number, since it uses less digits than its factorization.

8091049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218714.

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

The square root of 8091049 is about 2844.4769290680. The cubic root of 8091049 is about 200.7558812851.

The spelling of 8091049 in words is "eight million, ninety-one thousand, forty-nine".