6580409 has 4 divisors (see below), whose sum is σ = 7178640. Its totient is φ = 5982180.

The previous prime is 6580397. The next prime is 6580417. The reversal of 6580409 is 9040856.

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 6580409 - 2¹² = 6576313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6580499) 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, 299099 + ... + 299120.

It is an arithmetic number, because the mean of its divisors is an integer number (1794660).

Almost surely, 2^6580409 is an apocalyptic number.

It is an amenable number.

6580409 is a deficient number, since it is larger than the sum of its proper divisors (598231).

6580409 is a wasteful number, since it uses less digits than its factorization.

6580409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598230.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6580409 is about 2565.2307888375. The cubic root of 6580409 is about 187.3919638364.

The spelling of 6580409 in words is "six million, five hundred eighty thousand, four hundred nine".