8049569 has 4 divisors (see below), whose sum is σ = 8781360. Its totient is φ = 7317780.

The previous prime is 8049533. The next prime is 8049593. The reversal of 8049569 is 9659408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8049569 is a prime.

It is a super-2 number, since 2×8049569² = 129591122171522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8049169) 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, 365879 + ... + 365900.

It is an arithmetic number, because the mean of its divisors is an integer number (2195340).

Almost surely, 2^8049569 is an apocalyptic number.

It is an amenable number.

8049569 is a deficient number, since it is larger than the sum of its proper divisors (731791).

8049569 is a wasteful number, since it uses less digits than its factorization.

8049569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731790.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 8049569 is about 2837.1762370357. The cubic root of 8049569 is about 200.4122247700.

The spelling of 8049569 in words is "eight million, forty-nine thousand, five hundred sixty-nine".