16771243 has 4 divisors (see below), whose sum is σ = 17653960. Its totient is φ = 15888528.

The previous prime is 16771241. The next prime is 16771253. The reversal of 16771243 is 34217761.

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 16771243 - 2¹ = 16771241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16771241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441330 + ... + 441367.

It is an arithmetic number, because the mean of its divisors is an integer number (4413490).

Almost surely, 2^16771243 is an apocalyptic number.

16771243 is a deficient number, since it is larger than the sum of its proper divisors (882717).

16771243 is an equidigital number, since it uses as much as digits as its factorization.

16771243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882716.

The product of its digits is 7056, while the sum is 31.

The square root of 16771243 is about 4095.2708091163. The cubic root of 16771243 is about 255.9696161450.

The spelling of 16771243 in words is "sixteen million, seven hundred seventy-one thousand, two hundred forty-three".