5781849 has 8 divisors (see below), whose sum is σ = 7728672. Its totient is φ = 3844800.

The previous prime is 5781847. The next prime is 5781857. The reversal of 5781849 is 9481875.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5781849 - 2¹ = 5781847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5781849.

It is not an unprimeable number, because it can be changed into a prime (5781847) 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 7 ways as a sum of consecutive naturals, for example, 927 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (966084).

Almost surely, 2^5781849 is an apocalyptic number.

It is an amenable number.

5781849 is a deficient number, since it is larger than the sum of its proper divisors (1946823).

5781849 is a wasteful number, since it uses less digits than its factorization.

5781849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its digits is 80640, while the sum is 42.

The square root of 5781849 is about 2404.5475665913. The cubic root of 5781849 is about 179.4825571513.

The spelling of 5781849 in words is "five million, seven hundred eighty-one thousand, eight hundred forty-nine".