16871988 has 48 divisors (see below), whose sum is σ = 45198720. Its totient is φ = 4798464.

The previous prime is 16871977. The next prime is 16871993. The reversal of 16871988 is 88917861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29368 + ... + 29936.

It is an arithmetic number, because the mean of its divisors is an integer number (941640).

Almost surely, 2^16871988 is an apocalyptic number.

It is an amenable number.

16871988 is an abundant number, since it is smaller than the sum of its proper divisors (28326732).

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

16871988 is a wasteful number, since it uses less digits than its factorization.

16871988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 934 counting only the distinct ones).

The product of its digits is 193536, while the sum is 48.

The square root of 16871988 is about 4107.5525559632. The cubic root of 16871988 is about 256.4811305081.

The spelling of 16871988 in words is "sixteen million, eight hundred seventy-one thousand, nine hundred eighty-eight".