2687249 has 2 divisors, whose sum is σ = 2687250. Its totient is φ = 2687248.

The previous prime is 2687239. The next prime is 2687257. The reversal of 2687249 is 9427862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 883600 = 1343^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687249 - 2⁸ = 2686993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2687219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343624 + 1343625.

It is an arithmetic number, because the mean of its divisors is an integer number (1343625).

2^2687249 is an apocalyptic number.

It is an amenable number.

2687249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687249 is an equidigital number, since it uses as much as digits as its factorization.

2687249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 2687249 is about 1639.2830750057. The cubic root of 2687249 is about 139.0281157004.

The spelling of 2687249 in words is "two million, six hundred eighty-seven thousand, two hundred forty-nine".