16889493 has 8 divisors (see below), whose sum is σ = 22550400. Its totient is φ = 11244128.

The previous prime is 16889491. The next prime is 16889503. The reversal of 16889493 is 39498861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16889493 - 2¹ = 16889491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16889491) 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 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (2818800).

Almost surely, 2^16889493 is an apocalyptic number.

It is an amenable number.

16889493 is a deficient number, since it is larger than the sum of its proper divisors (5660907).

16889493 is an equidigital number, since it uses as much as digits as its factorization.

16889493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771.

The product of its digits is 373248, while the sum is 48.

The square root of 16889493 is about 4109.6828344776. The cubic root of 16889493 is about 256.5698011569.

The spelling of 16889493 in words is "sixteen million, eight hundred eighty-nine thousand, four hundred ninety-three".