6497969 has 2 divisors, whose sum is σ = 6497970. Its totient is φ = 6497968.

The previous prime is 6497957. The next prime is 6497989. The reversal of 6497969 is 9697946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5664400 + 833569 = 2380^2 + 913^2 .

It is a cyclic number.

It is not a de Polignac number, because 6497969 - 2⁸ = 6497713 is a prime.

It is a super-2 number, since 2×6497969² = 84447202249922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6497929) 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, 3248984 + 3248985.

It is an arithmetic number, because the mean of its divisors is an integer number (3248985).

Almost surely, 2^6497969 is an apocalyptic number.

It is an amenable number.

6497969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6497969 is an equidigital number, since it uses as much as digits as its factorization.

6497969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 6497969 is about 2549.1114138068. Note that the first 3 decimals coincide. The cubic root of 6497969 is about 186.6061180464.

It can be divided in two parts, 64 and 97969, that multiplied together give a square (6270016 = 2504²).

The spelling of 6497969 in words is "six million, four hundred ninety-seven thousand, nine hundred sixty-nine".