5688981 has 16 divisors (see below), whose sum is σ = 8795520. Its totient is φ = 3627360.

The previous prime is 5688979. The next prime is 5688983. The reversal of 5688981 is 1898865.

5688981 is a `hidden beast` number, since 568 + 8 + 9 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (5688979) and next prime (5688983).

It is not a de Polignac number, because 5688981 - 2¹ = 5688979 is a prime.

It is a super-2 number, since 2×5688981² = 64729009636722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5688983) 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 15 ways as a sum of consecutive naturals, for example, 3960 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (549720).

Almost surely, 2^5688981 is an apocalyptic number.

It is an amenable number.

5688981 is a deficient number, since it is larger than the sum of its proper divisors (3106539).

5688981 is a wasteful number, since it uses less digits than its factorization.

5688981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193 (or 9187 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 5688981 is about 2385.1584853003. The cubic root of 5688981 is about 178.5164168221.

The spelling of 5688981 in words is "five million, six hundred eighty-eight thousand, nine hundred eighty-one".