16875689 has 2 divisors, whose sum is σ = 16875690. Its totient is φ = 16875688.

The previous prime is 16875673. The next prime is 16875731. The reversal of 16875689 is 98657861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16875664 + 25 = 4108^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 16875689 - 2⁴ = 16875673 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16875619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8437844 + 8437845.

It is an arithmetic number, because the mean of its divisors is an integer number (8437845).

Almost surely, 2^16875689 is an apocalyptic number.

It is an amenable number.

16875689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16875689 is an equidigital number, since it uses as much as digits as its factorization.

16875689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 16875689 is about 4108.0030428421. The cubic root of 16875689 is about 256.4998828382.

It can be divided in two parts, 168 and 75689, that added together give a palindrome (75857).

The spelling of 16875689 in words is "sixteen million, eight hundred seventy-five thousand, six hundred eighty-nine".