1998000599 has 16 divisors (see below), whose sum is σ = 2419043328. Its totient is φ = 1610969472.

The previous prime is 1998000577. The next prime is 1998000661. The reversal of 1998000599 is 9950008991.

It is not a de Polignac number, because 1998000599 - 2⁸ = 1998000343 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998000509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311822 + ... + 318164.

It is an arithmetic number, because the mean of its divisors is an integer number (151190208).

Almost surely, 2^1998000599 is an apocalyptic number.

1998000599 is a deficient number, since it is larger than the sum of its proper divisors (421042729).

1998000599 is a wasteful number, since it uses less digits than its factorization.

1998000599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014.

The product of its (nonzero) digits is 262440, while the sum is 50.

The square root of 1998000599 is about 44698.9999776281. Note that the first 4 decimals coincide. The cubic root of 1998000599 is about 1259.5010620086.

The spelling of 1998000599 in words is "one billion, nine hundred ninety-eight million, five hundred ninety-nine", and thus it is an aban number.