16889247 has 12 divisors (see below), whose sum is σ = 24434280. Its totient is φ = 11241648.

The previous prime is 16889221. The next prime is 16889251. The reversal of 16889247 is 74298861.

It is not a de Polignac number, because 16889247 - 2⁶ = 16889183 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 7129 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (2036190).

Almost surely, 2^16889247 is an apocalyptic number.

16889247 is a deficient number, since it is larger than the sum of its proper divisors (7545033).

16889247 is a wasteful number, since it uses less digits than its factorization.

16889247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2979 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 16889247 is about 4109.6529050517. The cubic root of 16889247 is about 256.5685554815.

The spelling of 16889247 in words is "sixteen million, eight hundred eighty-nine thousand, two hundred forty-seven".