2259689 has 4 divisors (see below), whose sum is σ = 2378640. Its totient is φ = 2140740.

The previous prime is 2259671. The next prime is 2259703. The reversal of 2259689 is 9869522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2259689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2259629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59447 + ... + 59484.

It is an arithmetic number, because the mean of its divisors is an integer number (594660).

2^2259689 is an apocalyptic number.

It is an amenable number.

2259689 is a deficient number, since it is larger than the sum of its proper divisors (118951).

2259689 is a wasteful number, since it uses less digits than its factorization.

2259689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118950.

The product of its digits is 77760, while the sum is 41.

The square root of 2259689 is about 1503.2261972172. The cubic root of 2259689 is about 131.2248919470.

The spelling of 2259689 in words is "two million, two hundred fifty-nine thousand, six hundred eighty-nine".