5845409 has 4 divisors (see below), whose sum is σ = 5850516. Its totient is φ = 5840304.

The previous prime is 5845403. The next prime is 5845417. The reversal of 5845409 is 9045485.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9045485 = 5 ⋅1809097.

It can be written as a sum of positive squares in 2 ways, for example, as 4635409 + 1210000 = 2153^2 + 1100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5845409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5845403) 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, 47 + ... + 3419.

It is an arithmetic number, because the mean of its divisors is an integer number (1462629).

Almost surely, 2^5845409 is an apocalyptic number.

It is an amenable number.

5845409 is a deficient number, since it is larger than the sum of its proper divisors (5107).

5845409 is a wasteful number, since it uses less digits than its factorization.

5845409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 5845409 is about 2417.7280657675. The cubic root of 5845409 is about 180.1378470823.

The spelling of 5845409 in words is "five million, eight hundred forty-five thousand, four hundred nine".