5811660 has 72 divisors (see below), whose sum is σ = 17886960. Its totient is φ = 1527168.

The previous prime is 5811649. The next prime is 5811661. The reversal of 5811660 is 661185.

5811660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (5811661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14746 + ... + 15134.

It is an arithmetic number, because the mean of its divisors is an integer number (248430).

Almost surely, 2^5811660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5811660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8943480).

5811660 is an abundant number, since it is smaller than the sum of its proper divisors (12075300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5811660 is a wasteful number, since it uses less digits than its factorization.

5811660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 5811660 is about 2410.7384760691. The cubic root of 5811660 is about 179.7904969936.

The spelling of 5811660 in words is "five million, eight hundred eleven thousand, six hundred sixty".