16889263 has 4 divisors (see below), whose sum is σ = 17079120. Its totient is φ = 16699408.

The previous prime is 16889261. The next prime is 16889287. The reversal of 16889263 is 36298861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16889263 - 2¹ = 16889261 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 (16889261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94795 + ... + 94972.

It is an arithmetic number, because the mean of its divisors is an integer number (4269780).

Almost surely, 2^16889263 is an apocalyptic number.

16889263 is a deficient number, since it is larger than the sum of its proper divisors (189857).

16889263 is an equidigital number, since it uses as much as digits as its factorization.

16889263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189856.

The product of its digits is 124416, while the sum is 43.

The square root of 16889263 is about 4109.6548516877. The cubic root of 16889263 is about 256.5686365014.

The spelling of 16889263 in words is "sixteen million, eight hundred eighty-nine thousand, two hundred sixty-three".