5781445 has 12 divisors (see below), whose sum is σ = 7371684. Its totient is φ = 4352000.

The previous prime is 5781443. The next prime is 5781467. The reversal of 5781445 is 5441875.

It can be written as a sum of positive squares in 6 ways, for example, as 26244 + 5755201 = 162^2 + 2399^2 .

It is not a de Polignac number, because 5781445 - 2¹ = 5781443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5781445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556 + ... + 3445.

It is an arithmetic number, because the mean of its divisors is an integer number (614307).

Almost surely, 2^5781445 is an apocalyptic number.

It is an amenable number.

5781445 is a deficient number, since it is larger than the sum of its proper divisors (1590239).

5781445 is a wasteful number, since it uses less digits than its factorization.

5781445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4023 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 5781445 is about 2404.4635576361. The cubic root of 5781445 is about 179.4783766754.

It can be divided in two parts, 5781 and 445, that added together give a palindrome (6226).

The spelling of 5781445 in words is "five million, seven hundred eighty-one thousand, four hundred forty-five".