2000171998 has 8 divisors (see below), whose sum is σ = 3273008760. Its totient is φ = 909169080.

The previous prime is 2000171959. The next prime is 2000172017. The reversal of 2000171998 is 8991710002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 45458433 + ... + 45458476.

It is an arithmetic number, because the mean of its divisors is an integer number (409126095).

Almost surely, 2^2000171998 is an apocalyptic number.

2000171998 is a deficient number, since it is larger than the sum of its proper divisors (1272836762).

2000171998 is a wasteful number, since it uses less digits than its factorization.

2000171998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90916922.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 2000171998 is about 44723.2825047536. The cubic root of 2000171998 is about 1259.9571661764.

The spelling of 2000171998 in words is "two billion, one hundred seventy-one thousand, nine hundred ninety-eight".