5811778 has 16 divisors (see below), whose sum is σ = 10396800. Its totient is φ = 2382336.

The previous prime is 5811769. The next prime is 5811779. The reversal of 5811778 is 8771185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5811779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8703 + ... + 9346.

It is an arithmetic number, because the mean of its divisors is an integer number (649800).

Almost surely, 2^5811778 is an apocalyptic number.

5811778 is a deficient number, since it is larger than the sum of its proper divisors (4585022).

5811778 is a wasteful number, since it uses less digits than its factorization.

5811778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081.

The product of its digits is 15680, while the sum is 37.

The square root of 5811778 is about 2410.7629497734. The cubic root of 5811778 is about 179.7917138080.

It can be divided in two parts, 581177 and 8, that added together give a palindrome (581185).

The spelling of 5811778 in words is "five million, eight hundred eleven thousand, seven hundred seventy-eight".