6246689 has 2 divisors, whose sum is σ = 6246690. Its totient is φ = 6246688.

The previous prime is 6246677. The next prime is 6246697. The reversal of 6246689 is 9866426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4264225 + 1982464 = 2065^2 + 1408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6246689 is a prime.

It is a super-2 number, since 2×6246689² = 78042246925442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6246619) 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, 3123344 + 3123345.

It is an arithmetic number, because the mean of its divisors is an integer number (3123345).

Almost surely, 2^6246689 is an apocalyptic number.

It is an amenable number.

6246689 is a deficient number, since it is larger than the sum of its proper divisors (1).

6246689 is an equidigital number, since it uses as much as digits as its factorization.

6246689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 6246689 is about 2499.3377122750. The cubic root of 6246689 is about 184.1690416443.

The spelling of 6246689 in words is "six million, two hundred forty-six thousand, six hundred eighty-nine".