16216287 has 8 divisors (see below), whose sum is σ = 21640320. Its totient is φ = 10801560.

The previous prime is 16216271. The next prime is 16216297. The reversal of 16216287 is 78261261.

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

It is not a de Polignac number, because 16216287 - 2⁴ = 16216271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216247) 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 7 ways as a sum of consecutive naturals, for example, 5764 + ... + 8102.

It is an arithmetic number, because the mean of its divisors is an integer number (2705040).

Almost surely, 2^16216287 is an apocalyptic number.

16216287 is a deficient number, since it is larger than the sum of its proper divisors (5424033).

16216287 is a wasteful number, since it uses less digits than its factorization.

16216287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653.

The product of its digits is 8064, while the sum is 33.

The square root of 16216287 is about 4026.9451200631. The cubic root of 16216287 is about 253.1145674103.

The spelling of 16216287 in words is "sixteen million, two hundred sixteen thousand, two hundred eighty-seven".