5805405 has 16 divisors (see below), whose sum is σ = 10320960. Its totient is φ = 3096144.

The previous prime is 5805403. The next prime is 5805413. The reversal of 5805405 is 5045085.

5805405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5805405 - 2¹ = 5805403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5805403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21367 + ... + 21636.

It is an arithmetic number, because the mean of its divisors is an integer number (645060).

Almost surely, 2^5805405 is an apocalyptic number.

It is an amenable number.

5805405 is a deficient number, since it is larger than the sum of its proper divisors (4515555).

5805405 is a wasteful number, since it uses less digits than its factorization.

5805405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43017 (or 43011 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 5805405 is about 2409.4408064943. The cubic root of 5805405 is about 179.7259719262.

The spelling of 5805405 in words is "five million, eight hundred five thousand, four hundred five".