1848009 has 4 divisors (see below), whose sum is σ = 2464016. Its totient is φ = 1232004.

The previous prime is 1847999. The next prime is 1848013. The reversal of 1848009 is 9008481.

It is a happy number.

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 not a de Polignac number, because 1848009 - 2¹⁷ = 1716937 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

1848009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1848029) 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, 307999 + ... + 308004.

It is an arithmetic number, because the mean of its divisors is an integer number (616004).

2^1848009 is an apocalyptic number.

It is an amenable number.

1848009 is a deficient number, since it is larger than the sum of its proper divisors (616007).

1848009 is an equidigital number, since it uses as much as digits as its factorization.

1848009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616006.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1848009 is about 1359.4149476889. The cubic root of 1848009 is about 122.7160480070.

The spelling of 1848009 in words is "one million, eight hundred forty-eight thousand, nine".