598999 has 2 divisors, whose sum is σ = 599000. Its totient is φ = 598998.

The previous prime is 598987. The next prime is 599003. The reversal of 598999 is 999895.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 598999 - 2⁵ = 598967 is a prime.

598999 is a modest number, since divided by 999 gives 598 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (598099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299499 + 299500.

It is an arithmetic number, because the mean of its divisors is an integer number (299500).

2⁵⁹⁸⁹⁹⁹ is an apocalyptic number.

598999 is a deficient number, since it is larger than the sum of its proper divisors (1).

598999 is an equidigital number, since it uses as much as digits as its factorization.

598999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 49.

The square root of 598999 is about 773.9502567995. The cubic root of 598999 is about 84.2963361943.

The spelling of 598999 in words is "five hundred ninety-eight thousand, nine hundred ninety-nine".