16845789 has 4 divisors (see below), whose sum is σ = 22461056. Its totient is φ = 11230524.

The previous prime is 16845779. The next prime is 16845797. The reversal of 16845789 is 98754861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98754861 = 3 ⋅32918287.

It is not a de Polignac number, because 16845789 - 2⁵ = 16845757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845749) 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 3 ways as a sum of consecutive naturals, for example, 2807629 + ... + 2807634.

It is an arithmetic number, because the mean of its divisors is an integer number (5615264).

Almost surely, 2^16845789 is an apocalyptic number.

It is an amenable number.

16845789 is a deficient number, since it is larger than the sum of its proper divisors (5615267).

16845789 is an equidigital number, since it uses as much as digits as its factorization.

16845789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615266.

The product of its digits is 483840, while the sum is 48.

The square root of 16845789 is about 4104.3621916200. The cubic root of 16845789 is about 256.3483062038.

The spelling of 16845789 in words is "sixteen million, eight hundred forty-five thousand, seven hundred eighty-nine".