599999 has 2 divisors, whose sum is σ = 600000. Its totient is φ = 599998.

The previous prime is 599993. The next prime is 600011. The reversal of 599999 is 999995.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 599999 - 2⁴ = 599983 is a prime.

It is a Sophie Germain prime.

599999 is a modest number, since divided by 999 gives 599 as remainder.

It is a plaindrome in base 8 and base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 599999.

It is not a weakly prime, because it can be changed into another prime (599993) 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, 299999 + 300000.

It is an arithmetic number, because the mean of its divisors is an integer number (300000).

2⁵⁹⁹⁹⁹⁹ is an apocalyptic number.

599999 is a deficient number, since it is larger than the sum of its proper divisors (1).

599999 is an equidigital number, since it uses as much as digits as its factorization.

599999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 295245, while the sum is 50.

The square root of 599999 is about 774.5960237440. The cubic root of 599999 is about 84.3432196728.

The spelling of 599999 in words is "five hundred ninety-nine thousand, nine hundred ninety-nine".