2017998984 has 16 divisors (see below), whose sum is σ = 5044997520. Its totient is φ = 672666320.

The previous prime is 2017998977. The next prime is 2017999019. The reversal of 2017998984 is 4898997102.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 42041622 + ... + 42041669.

It is an arithmetic number, because the mean of its divisors is an integer number (315312345).

Almost surely, 2^2017998984 is an apocalyptic number.

2017998984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2017998984 is an abundant number, since it is smaller than the sum of its proper divisors (3026998536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2017998984 is a wasteful number, since it uses less digits than its factorization.

2017998984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84083300 (or 84083296 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 57.

The square root of 2017998984 is about 44922.1435819797. The cubic root of 2017998984 is about 1263.6893180375.

It can be divided in two parts, 2017 and 998984, that added together give a palindrome (1001001).

The spelling of 2017998984 in words is "two billion, seventeen million, nine hundred ninety-eight thousand, nine hundred eighty-four".