5688639 has 24 divisors (see below), whose sum is σ = 9212112. Its totient is φ = 3352320.

The previous prime is 5688607. The next prime is 5688653. The reversal of 5688639 is 9368865.

5688639 is a `hidden beast` number, since 5 + 6 + 8 + 8 + 639 = 666.

It is not a de Polignac number, because 5688639 - 2⁵ = 5688607 is a prime.

It is a super-2 number, since 2×5688639² = 64721227344642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5688594 and 5688603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5688679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2887 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (383838).

Almost surely, 2^5688639 is an apocalyptic number.

5688639 is a deficient number, since it is larger than the sum of its proper divisors (3523473).

5688639 is a wasteful number, since it uses less digits than its factorization.

5688639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1604 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 5688639 is about 2385.0867908737. The cubic root of 5688639 is about 178.5128395067.

The spelling of 5688639 in words is "five million, six hundred eighty-eight thousand, six hundred thirty-nine".