2589666 has 8 divisors (see below), whose sum is σ = 5179344. Its totient is φ = 863220.

The previous prime is 2589659. The next prime is 2589677. The reversal of 2589666 is 6669852.

2589666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2589666 is an admirable number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 215800 + ... + 215811.

It is an arithmetic number, because the mean of its divisors is an integer number (647418).

2^2589666 is an apocalyptic number.

2589666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2589666 is a wasteful number, since it uses less digits than its factorization.

2589666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431616.

The product of its digits is 155520, while the sum is 42.

The square root of 2589666 is about 1609.2439218465. The cubic root of 2589666 is about 137.3244658134.

The spelling of 2589666 in words is "two million, five hundred eighty-nine thousand, six hundred sixty-six".