5688989 has 2 divisors, whose sum is σ = 5688990. Its totient is φ = 5688988.

The previous prime is 5688983. The next prime is 5688997. The reversal of 5688989 is 9898865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5244100 + 444889 = 2290^2 + 667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5688989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5688989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5688983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2844494 + 2844495.

It is an arithmetic number, because the mean of its divisors is an integer number (2844495).

Almost surely, 2^5688989 is an apocalyptic number.

It is an amenable number.

5688989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5688989 is an equidigital number, since it uses as much as digits as its factorization.

5688989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 53.

The square root of 5688989 is about 2385.1601623371. The cubic root of 5688989 is about 178.5165005003.

The spelling of 5688989 in words is "five million, six hundred eighty-eight thousand, nine hundred eighty-nine".