6509873 has 2 divisors, whose sum is σ = 6509874. Its totient is φ = 6509872.

The previous prime is 6509869. The next prime is 6509903. The reversal of 6509873 is 3789056.

6509873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4129024 + 2380849 = 2032^2 + 1543^2 .

It is a cyclic number.

It is not a de Polignac number, because 6509873 - 2² = 6509869 is a prime.

It is a super-2 number, since 2×6509873² = 84756892952258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6509803) 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 as a sum of consecutive naturals, namely, 3254936 + 3254937.

It is an arithmetic number, because the mean of its divisors is an integer number (3254937).

Almost surely, 2^6509873 is an apocalyptic number.

It is an amenable number.

6509873 is a deficient number, since it is larger than the sum of its proper divisors (1).

6509873 is an equidigital number, since it uses as much as digits as its factorization.

6509873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 6509873 is about 2551.4452767010. The cubic root of 6509873 is about 186.7199999957.

The spelling of 6509873 in words is "six million, five hundred nine thousand, eight hundred seventy-three".