6495949 has 2 divisors, whose sum is σ = 6495950. Its totient is φ = 6495948.

The previous prime is 6495947. The next prime is 6495991. The reversal of 6495949 is 9495946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6215049 + 280900 = 2493^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 6495949 - 2¹ = 6495947 is a prime.

Together with 6495947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6495899 and 6495908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6495941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247974 + 3247975.

It is an arithmetic number, because the mean of its divisors is an integer number (3247975).

Almost surely, 2^6495949 is an apocalyptic number.

It is an amenable number.

6495949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6495949 is an equidigital number, since it uses as much as digits as its factorization.

6495949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 6495949 is about 2548.7151665104. The cubic root of 6495949 is about 186.5867795205.

The spelling of 6495949 in words is "six million, four hundred ninety-five thousand, nine hundred forty-nine".