598987 has 2 divisors, whose sum is σ = 598988. Its totient is φ = 598986.

The previous prime is 598981. The next prime is 598999. The reversal of 598987 is 789895.

598987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 598987 - 2¹⁹ = 74699 is a prime.

It is an Ulam number.

598987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (598981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299493 + 299494.

It is an arithmetic number, because the mean of its divisors is an integer number (299494).

2⁵⁹⁸⁹⁸⁷ is an apocalyptic number.

598987 is a deficient number, since it is larger than the sum of its proper divisors (1).

598987 is an equidigital number, since it uses as much as digits as its factorization.

598987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 598987 is about 773.9425043244. The cubic root of 598987 is about 84.2957732759.

The spelling of 598987 in words is "five hundred ninety-eight thousand, nine hundred eighty-seven".