998000587 has 2 divisors, whose sum is σ = 998000588. Its totient is φ = 998000586.

The previous prime is 998000581. The next prime is 998000603. The reversal of 998000587 is 785000899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998000587 - 2¹¹ = 997998539 is a prime.

It is not a weakly prime, because it can be changed into another prime (998000581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499000293 + 499000294.

It is an arithmetic number, because the mean of its divisors is an integer number (499000294).

Almost surely, 2^998000587 is an apocalyptic number.

998000587 is a deficient number, since it is larger than the sum of its proper divisors (1).

998000587 is an equidigital number, since it uses as much as digits as its factorization.

998000587 is an odious number, because the sum of its binary digits is odd.

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

The square root of 998000587 is about 31591.1472884414. The cubic root of 998000587 is about 999.3330843224. Note that the first 3 decimals are identical.

The spelling of 998000587 in words is "nine hundred ninety-eight million, five hundred eighty-seven", and thus it is an aban number.