2289389 has 4 divisors (see below), whose sum is σ = 2317056. Its totient is φ = 2261724.

The previous prime is 2289379. The next prime is 2289401. The reversal of 2289389 is 9839822.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9839822 = 2 ⋅4919911.

It is a cyclic number.

It is not a de Polignac number, because 2289389 - 2¹⁶ = 2223853 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 2²¹ + 8⁴ + 9² + 3¹¹ + 8⁴ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289349) 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, 13709 + ... + 13874.

It is an arithmetic number, because the mean of its divisors is an integer number (579264).

2^2289389 is an apocalyptic number.

It is an amenable number.

2289389 is a deficient number, since it is larger than the sum of its proper divisors (27667).

2289389 is an equidigital number, since it uses as much as digits as its factorization.

2289389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27666.

The product of its digits is 62208, while the sum is 41.

The square root of 2289389 is about 1513.0727014919. The cubic root of 2289389 is about 131.7973052227.

The spelling of 2289389 in words is "two million, two hundred eighty-nine thousand, three hundred eighty-nine".