5805645 has 16 divisors (see below), whose sum is σ = 9506112. Its totient is φ = 3024000.

The previous prime is 5805629. The next prime is 5805671. The reversal of 5805645 is 5465085.

It is not a de Polignac number, because 5805645 - 2⁴ = 5805629 is a prime.

It is a super-3 number, since 3×5805645³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3856 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (594132).

Almost surely, 2^5805645 is an apocalyptic number.

It is an amenable number.

5805645 is a deficient number, since it is larger than the sum of its proper divisors (3700467).

5805645 is a wasteful number, since it uses less digits than its factorization.

5805645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 5805645 is about 2409.4906100668. The cubic root of 5805645 is about 179.7284485630.

It can be divided in two parts, 5805 and 645, that multiplied together give a square (3744225 = 1935²).

The spelling of 5805645 in words is "five million, eight hundred five thousand, six hundred forty-five".