6581089 has 4 divisors (see below), whose sum is σ = 6598656. Its totient is φ = 6563524.

The previous prime is 6581077. The next prime is 6581111. The reversal of 6581089 is 9801856.

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 not a de Polignac number, because 6581089 - 2⁷ = 6580961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6581009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8209 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1649664).

Almost surely, 2^6581089 is an apocalyptic number.

It is an amenable number.

6581089 is a deficient number, since it is larger than the sum of its proper divisors (17567).

6581089 is a wasteful number, since it uses less digits than its factorization.

6581089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 6581089 is about 2565.3633270942. The cubic root of 6581089 is about 187.3984184578.

The spelling of 6581089 in words is "six million, five hundred eighty-one thousand, eighty-nine".