16871992 has 16 divisors (see below), whose sum is σ = 32407200. Its totient is φ = 8230080.

The previous prime is 16871977. The next prime is 16871993. The reversal of 16871992 is 29917861.

It is a super-2 number, since 2×16871992² = 569328228096128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16871993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25392 + ... + 26047.

It is an arithmetic number, because the mean of its divisors is an integer number (2025450).

Almost surely, 2^16871992 is an apocalyptic number.

It is an amenable number.

16871992 is a deficient number, since it is larger than the sum of its proper divisors (15535208).

16871992 is a wasteful number, since it uses less digits than its factorization.

16871992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51486 (or 51482 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 16871992 is about 4107.5530428711. The cubic root of 16871992 is about 256.4811507769.

The spelling of 16871992 in words is "sixteen million, eight hundred seventy-one thousand, nine hundred ninety-two".