6297649 has 2 divisors, whose sum is σ = 6297650. Its totient is φ = 6297648.

The previous prime is 6297647. The next prime is 6297677. The reversal of 6297649 is 9467926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4809249 + 1488400 = 2193^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 6297649 - 2¹ = 6297647 is a prime.

Together with 6297647, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 6 + 2⁵ + 9 + 7⁸ + 6⁴ + 4³ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (6297647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3148824 + 3148825.

It is an arithmetic number, because the mean of its divisors is an integer number (3148825).

Almost surely, 2^6297649 is an apocalyptic number.

It is an amenable number.

6297649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6297649 is an equidigital number, since it uses as much as digits as its factorization.

6297649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 6297649 is about 2509.5117054917. The cubic root of 6297649 is about 184.6684981304.

The spelling of 6297649 in words is "six million, two hundred ninety-seven thousand, six hundred forty-nine".