2589649 has 2 divisors, whose sum is σ = 2589650. Its totient is φ = 2589648.

The previous prime is 2589641. The next prime is 2589659. The reversal of 2589649 is 9469852.

2589649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1423249 + 1166400 = 1193^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2589649 - 2³ = 2589641 is a prime.

It is a d-powerful number, because it can be written as 2 + 5⁹ + 8⁵ + 9⁴ + 6³ + 4⁸ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2589641) 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, 1294824 + 1294825.

It is an arithmetic number, because the mean of its divisors is an integer number (1294825).

2^2589649 is an apocalyptic number.

It is an amenable number.

2589649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2589649 is an equidigital number, since it uses as much as digits as its factorization.

2589649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 2589649 is about 1609.2386398543. The cubic root of 2589649 is about 137.3241653215.

The spelling of 2589649 in words is "two million, five hundred eighty-nine thousand, six hundred forty-nine".