2299009 has 4 divisors (see below), whose sum is σ = 2302804. Its totient is φ = 2295216.

The previous prime is 2299001. The next prime is 2299021. The reversal of 2299009 is 9009922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9009922 = 2 ⋅4504961.

It can be written as a sum of positive squares in 2 ways, for example, as 1703025 + 595984 = 1305^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2299009 - 2³ = 2299001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2299001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (575701).

2^2299009 is an apocalyptic number.

It is an amenable number.

2299009 is a deficient number, since it is larger than the sum of its proper divisors (3795).

2299009 is an equidigital number, since it uses as much as digits as its factorization.

2299009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 2299009 is about 1516.2483305844. The cubic root of 2299009 is about 131.9816511073.

The spelling of 2299009 in words is "two million, two hundred ninety-nine thousand, nine".