16889207 has 4 divisors (see below), whose sum is σ = 17120640. Its totient is φ = 16657776.

The previous prime is 16889189. The next prime is 16889221. The reversal of 16889207 is 70298861.

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 16889207 - 2⁸ = 16888951 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 (16889287) 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, 115607 + ... + 115752.

It is an arithmetic number, because the mean of its divisors is an integer number (4280160).

Almost surely, 2^16889207 is an apocalyptic number.

16889207 is a deficient number, since it is larger than the sum of its proper divisors (231433).

16889207 is an equidigital number, since it uses as much as digits as its factorization.

16889207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231432.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 16889207 is about 4109.6480384578. The cubic root of 16889207 is about 256.5683529315.

The spelling of 16889207 in words is "sixteen million, eight hundred eighty-nine thousand, two hundred seven".