6427249 has 2 divisors, whose sum is σ = 6427250. Its totient is φ = 6427248.

The previous prime is 6427247. The next prime is 6427259. The reversal of 6427249 is 9427246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 1024 = 2535^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 6427249 - 2¹ = 6427247 is a prime.

Together with 6427247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6427247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213624 + 3213625.

It is an arithmetic number, because the mean of its divisors is an integer number (3213625).

Almost surely, 2^6427249 is an apocalyptic number.

It is an amenable number.

6427249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427249 is an equidigital number, since it uses as much as digits as its factorization.

6427249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 6427249 is about 2535.2019643413. The cubic root of 6427249 is about 185.9266774625.

The spelling of 6427249 in words is "six million, four hundred twenty-seven thousand, two hundred forty-nine".