5811487 has 4 divisors (see below), whose sum is σ = 6339816. Its totient is φ = 5283160.

The previous prime is 5811469. The next prime is 5811497. The reversal of 5811487 is 7841185.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5811487 - 2¹¹ = 5809439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5811437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264148 + ... + 264169.

It is an arithmetic number, because the mean of its divisors is an integer number (1584954).

Almost surely, 2^5811487 is an apocalyptic number.

5811487 is a deficient number, since it is larger than the sum of its proper divisors (528329).

5811487 is a wasteful number, since it uses less digits than its factorization.

5811487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528328.

The product of its digits is 8960, while the sum is 34.

The square root of 5811487 is about 2410.7025946806. The cubic root of 5811487 is about 179.7887129902.

The spelling of 5811487 in words is "five million, eight hundred eleven thousand, four hundred eighty-seven".