6580945 has 12 divisors (see below), whose sum is σ = 9186804. Its totient is φ = 4512480.

The previous prime is 6580943. The next prime is 6580961. The reversal of 6580945 is 5490856.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 5564881 = 1008^2 + 2359^2 .

It is not a de Polignac number, because 6580945 - 2¹ = 6580943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6580943) 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 11 ways as a sum of consecutive naturals, for example, 13186 + ... + 13675.

It is an arithmetic number, because the mean of its divisors is an integer number (765567).

Almost surely, 2^6580945 is an apocalyptic number.

It is an amenable number.

6580945 is a deficient number, since it is larger than the sum of its proper divisors (2605859).

6580945 is a wasteful number, since it uses less digits than its factorization.

6580945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26880 (or 26873 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 6580945 is about 2565.3352607408. The cubic root of 6580945 is about 187.3970516339.

The spelling of 6580945 in words is "six million, five hundred eighty thousand, nine hundred forty-five".