5687881 has 4 divisors (see below), whose sum is σ = 5768064. Its totient is φ = 5607700.

The previous prime is 5687873. The next prime is 5687887. The reversal of 5687881 is 1887865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5687881 - 2³ = 5687873 is a prime.

It is a super-2 number, since 2×5687881² = 64703980540322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5687887) 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 3 ways as a sum of consecutive naturals, for example, 39985 + ... + 40126.

It is an arithmetic number, because the mean of its divisors is an integer number (1442016).

Almost surely, 2^5687881 is an apocalyptic number.

It is an amenable number.

5687881 is a deficient number, since it is larger than the sum of its proper divisors (80183).

5687881 is an equidigital number, since it uses as much as digits as its factorization.

5687881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80182.

The product of its digits is 107520, while the sum is 43.

The square root of 5687881 is about 2384.9278815092. The cubic root of 5687881 is about 178.5049103258.

The spelling of 5687881 in words is "five million, six hundred eighty-seven thousand, eight hundred eighty-one".