2288609 has 4 divisors (see below), whose sum is σ = 2294016. Its totient is φ = 2283204.

The previous prime is 2288603. The next prime is 2288633. The reversal of 2288609 is 9068822.

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-2288609 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 8 + 8⁷ + 6⁴ + 0 + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2288603) 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, 2009 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (573504).

2^2288609 is an apocalyptic number.

It is an amenable number.

2288609 is a deficient number, since it is larger than the sum of its proper divisors (5407).

2288609 is an equidigital number, since it uses as much as digits as its factorization.

2288609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2288609 is about 1512.8149258915. The cubic root of 2288609 is about 131.7823356427.

The spelling of 2288609 in words is "two million, two hundred eighty-eight thousand, six hundred nine".