2624009 has 4 divisors (see below), whose sum is σ = 2628420. Its totient is φ = 2619600.

The previous prime is 2623997. The next prime is 2624023. The reversal of 2624009 is 9004262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 1951609 = 820^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 2624009 - 2⁴ = 2623993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2624029) 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, 1142 + ... + 2559.

It is an arithmetic number, because the mean of its divisors is an integer number (657105).

2^2624009 is an apocalyptic number.

It is an amenable number.

2624009 is a deficient number, since it is larger than the sum of its proper divisors (4411).

2624009 is an equidigital number, since it uses as much as digits as its factorization.

2624009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2624009 is about 1619.8793164924. The cubic root of 2624009 is about 137.9288473080.

The spelling of 2624009 in words is "two million, six hundred twenty-four thousand, nine".