5806645 has 16 divisors (see below), whose sum is σ = 7565040. Its totient is φ = 4253184.

The previous prime is 5806643. The next prime is 5806657. The reversal of 5806645 is 5466085.

5806645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1620529 + 4186116 = 1273^2 + 2046^2 .

It is not a de Polignac number, because 5806645 - 2¹ = 5806643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5806645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5806643) by changing a digit.

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, 9921 + ... + 10489.

It is an arithmetic number, because the mean of its divisors is an integer number (472815).

Almost surely, 2^5806645 is an apocalyptic number.

It is an amenable number.

5806645 is a deficient number, since it is larger than the sum of its proper divisors (1758395).

5806645 is a wasteful number, since it uses less digits than its factorization.

5806645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 5806645 is about 2409.6981138724. The cubic root of 5806645 is about 179.7387671484.

It can be divided in two parts, 580 and 6645, that added together give a square (7225 = 85²).

The spelling of 5806645 in words is "five million, eight hundred six thousand, six hundred forty-five".