16216337 has 4 divisors (see below), whose sum is σ = 16289280. Its totient is φ = 16143396.

The previous prime is 16216331. The next prime is 16216339. The reversal of 16216337 is 73361261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73361261 = 19 ⋅3861119.

It is a cyclic number.

It is not a de Polignac number, because 16216337 - 2¹⁰ = 16215313 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16216331) 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, 36137 + ... + 36582.

It is an arithmetic number, because the mean of its divisors is an integer number (4072320).

Almost surely, 2^16216337 is an apocalyptic number.

It is an amenable number.

16216337 is a deficient number, since it is larger than the sum of its proper divisors (72943).

16216337 is an equidigital number, since it uses as much as digits as its factorization.

16216337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72942.

The product of its digits is 4536, while the sum is 29.

The square root of 16216337 is about 4026.9513282383. The cubic root of 16216337 is about 253.1148275544.

Adding to 16216337 its reverse (73361261), we get a palindrome (89577598).

The spelling of 16216337 in words is "sixteen million, two hundred sixteen thousand, three hundred thirty-seven".