16854489 has 6 divisors (see below), whose sum is σ = 24345386. Its totient is φ = 11236320.

The previous prime is 16854479. The next prime is 16854491. The reversal of 16854489 is 98445861.

16854489 is a `hidden beast` number, since 168 + 5 + 4 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 1172889 = 3960^2 + 1083^2 .

It is not a de Polignac number, because 16854489 - 2⁴ = 16854473 is a prime.

It is a super-2 number, since 2×16854489² = 568147598902242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16854419) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 936352 + ... + 936369.

Almost surely, 2^16854489 is an apocalyptic number.

It is an amenable number.

16854489 is a deficient number, since it is larger than the sum of its proper divisors (7490897).

16854489 is a wasteful number, since it uses less digits than its factorization.

16854489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872727 (or 1872724 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 16854489 is about 4105.4219028012. The cubic root of 16854489 is about 256.3924289307.

The spelling of 16854489 in words is "sixteen million, eight hundred fifty-four thousand, four hundred eighty-nine".