5687999 has 2 divisors, whose sum is σ = 5688000. Its totient is φ = 5687998.

The previous prime is 5687993. The next prime is 5688037. The reversal of 5687999 is 9997865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5687999 - 2⁸ = 5687743 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5687999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5687993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2843999 + 2844000.

It is an arithmetic number, because the mean of its divisors is an integer number (2844000).

Almost surely, 2^5687999 is an apocalyptic number.

5687999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5687999 is an equidigital number, since it uses as much as digits as its factorization.

5687999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 53.

The square root of 5687999 is about 2384.9526200745. The cubic root of 5687999 is about 178.5061447301.

The spelling of 5687999 in words is "five million, six hundred eighty-seven thousand, nine hundred ninety-nine".