2289913 has 4 divisors (see below), whose sum is σ = 2297680. Its totient is φ = 2282148.

The previous prime is 2289901. The next prime is 2289919. The reversal of 2289913 is 3199822.

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 not a de Polignac number, because 2289913 - 2⁹ = 2289401 is a prime.

It is a Duffinian number.

2289913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2289919) 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, 3423 + ... + 4036.

It is an arithmetic number, because the mean of its divisors is an integer number (574420).

2^2289913 is an apocalyptic number.

It is an amenable number.

2289913 is a deficient number, since it is larger than the sum of its proper divisors (7767).

2289913 is an equidigital number, since it uses as much as digits as its factorization.

2289913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766.

The product of its digits is 7776, while the sum is 34.

The square root of 2289913 is about 1513.2458491600. The cubic root of 2289913 is about 131.8073598005.

Subtracting 2289913 from its reverse (3199822), we obtain a palindrome (909909).

The spelling of 2289913 in words is "two million, two hundred eighty-nine thousand, nine hundred thirteen".