6505949 has 2 divisors, whose sum is σ = 6505950. Its totient is φ = 6505948.

The previous prime is 6505937. The next prime is 6505973. The reversal of 6505949 is 9495056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6285049 + 220900 = 2507^2 + 470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6505949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6505549) 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, 3252974 + 3252975.

It is an arithmetic number, because the mean of its divisors is an integer number (3252975).

Almost surely, 2^6505949 is an apocalyptic number.

It is an amenable number.

6505949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505949 is an equidigital number, since it uses as much as digits as its factorization.

6505949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 6505949 is about 2550.6761848577. The cubic root of 6505949 is about 186.6824756310.

The spelling of 6505949 in words is "six million, five hundred five thousand, nine hundred forty-nine".