16854089 has 12 divisors (see below), whose sum is σ = 20760084. Its totient is φ = 13595904.

The previous prime is 16854077. The next prime is 16854091. The reversal of 16854089 is 98045861.

It can be written as a sum of positive squares in 2 ways, for example, as 11055625 + 5798464 = 3325^2 + 2408^2 .

It is not a de Polignac number, because 16854089 - 2⁴ = 16854073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16854029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9284 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (1730007).

Almost surely, 2^16854089 is an apocalyptic number.

It is an amenable number.

16854089 is a deficient number, since it is larger than the sum of its proper divisors (3905995).

16854089 is a wasteful number, since it uses less digits than its factorization.

16854089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20264 (or 20257 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 16854089 is about 4105.3731864472. The cubic root of 16854089 is about 256.3904006326.

The spelling of 16854089 in words is "sixteen million, eight hundred fifty-four thousand, eighty-nine".