5187881 has 8 divisors (see below), whose sum is σ = 5501184. Its totient is φ = 4883760.

The previous prime is 5187869. The next prime is 5187883. The reversal of 5187881 is 1887815.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5187881 is a prime.

It is a super-2 number, since 2×5187881² = 53828218540322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5187883) 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, 1115 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (687648).

Almost surely, 2^5187881 is an apocalyptic number.

It is an amenable number.

5187881 is a deficient number, since it is larger than the sum of its proper divisors (313303).

5187881 is a wasteful number, since it uses less digits than its factorization.

5187881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591.

The product of its digits is 17920, while the sum is 38.

The square root of 5187881 is about 2277.6920336165. The cubic root of 5187881 is about 173.1131272512.

The spelling of 5187881 in words is "five million, one hundred eighty-seven thousand, eight hundred eighty-one".