6506657 has 2 divisors, whose sum is σ = 6506658. Its totient is φ = 6506656.

The previous prime is 6506611. The next prime is 6506693. The reversal of 6506657 is 7566056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6031936 + 474721 = 2456^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 6506657 - 2¹⁴ = 6490273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6506057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3253328 + 3253329.

It is an arithmetic number, because the mean of its divisors is an integer number (3253329).

Almost surely, 2^6506657 is an apocalyptic number.

It is an amenable number.

6506657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6506657 is an equidigital number, since it uses as much as digits as its factorization.

6506657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 6506657 is about 2550.8149678093. The cubic root of 6506657 is about 186.6892471975.

The spelling of 6506657 in words is "six million, five hundred six thousand, six hundred fifty-seven".