5687249 has 2 divisors, whose sum is σ = 5687250. Its totient is φ = 5687248.

The previous prime is 5687239. The next prime is 5687261. The reversal of 5687249 is 9427865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5569600 + 117649 = 2360^2 + 343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5687249 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5⁹ + 6⁷ + 8⁷ + 7⁷ + 2¹¹ + 4 + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (5687239) 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, 2843624 + 2843625.

It is an arithmetic number, because the mean of its divisors is an integer number (2843625).

Almost surely, 2^5687249 is an apocalyptic number.

It is an amenable number.

5687249 is a deficient number, since it is larger than the sum of its proper divisors (1).

5687249 is an equidigital number, since it uses as much as digits as its factorization.

5687249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 5687249 is about 2384.7953790630. The cubic root of 5687249 is about 178.4982986497.

The spelling of 5687249 in words is "five million, six hundred eighty-seven thousand, two hundred forty-nine".