5608981 has 12 divisors (see below), whose sum is σ = 6588972. Its totient is φ = 4760448.

The previous prime is 5608969. The next prime is 5609053. The reversal of 5608981 is 1898065.

5608981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44100 + 5564881 = 210^2 + 2359^2 .

It is not a de Polignac number, because 5608981 - 2⁷ = 5608853 is a prime.

It is a super-2 number, since 2×5608981² = 62921335716722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5608981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5608901) 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 11 ways as a sum of consecutive naturals, for example, 5031 + ... + 6043.

It is an arithmetic number, because the mean of its divisors is an integer number (549081).

Almost surely, 2^5608981 is an apocalyptic number.

It is an amenable number.

5608981 is a deficient number, since it is larger than the sum of its proper divisors (979991).

5608981 is a wasteful number, since it uses less digits than its factorization.

5608981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 5608981 is about 2368.3287356277. The cubic root of 5608981 is about 177.6756813810.

The spelling of 5608981 in words is "five million, six hundred eight thousand, nine hundred eighty-one".