5687993 has 2 divisors, whose sum is σ = 5687994. Its totient is φ = 5687992.

The previous prime is 5687977. The next prime is 5687999. The reversal of 5687993 is 3997865.

5687993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4826809 + 861184 = 2197^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 5687993 - 2⁴ = 5687977 is a prime.

It is not a weakly prime, because it can be changed into another prime (5687999) 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 as a sum of consecutive naturals, namely, 2843996 + 2843997.

It is an arithmetic number, because the mean of its divisors is an integer number (2843997).

Almost surely, 2^5687993 is an apocalyptic number.

It is an amenable number.

5687993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5687993 is an equidigital number, since it uses as much as digits as its factorization.

5687993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 5687993 is about 2384.9513621875. The cubic root of 5687993 is about 178.5060819642.

The spelling of 5687993 in words is "five million, six hundred eighty-seven thousand, nine hundred ninety-three".