16394287 has 16 divisors (see below), whose sum is σ = 20284992. Its totient is φ = 12902400.

The previous prime is 16394281. The next prime is 16394327. The reversal of 16394287 is 78249361.

It is not a de Polignac number, because 16394287 - 2¹¹ = 16392239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16394281) 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 15 ways as a sum of consecutive naturals, for example, 23037 + ... + 23737.

It is an arithmetic number, because the mean of its divisors is an integer number (1267812).

Almost surely, 2^16394287 is an apocalyptic number.

16394287 is a deficient number, since it is larger than the sum of its proper divisors (3890705).

16394287 is a wasteful number, since it uses less digits than its factorization.

16394287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its digits is 72576, while the sum is 40.

The square root of 16394287 is about 4048.9859224255. The cubic root of 16394287 is about 254.0373134262.

The spelling of 16394287 in words is "sixteen million, three hundred ninety-four thousand, two hundred eighty-seven".