16217933 has 2 divisors, whose sum is σ = 16217934. Its totient is φ = 16217932.

The previous prime is 16217911. The next prime is 16217939. The reversal of 16217933 is 33971261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 6620329 = 3098^2 + 2573^2 .

It is an emirp because it is prime and its reverse (33971261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16217933 - 2⁶ = 16217869 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 16217933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16217939) 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 as a sum of consecutive naturals, namely, 8108966 + 8108967.

It is an arithmetic number, because the mean of its divisors is an integer number (8108967).

Almost surely, 2^16217933 is an apocalyptic number.

It is an amenable number.

16217933 is a deficient number, since it is larger than the sum of its proper divisors (1).

16217933 is an equidigital number, since it uses as much as digits as its factorization.

16217933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 16217933 is about 4027.1494881616. The cubic root of 16217933 is about 253.1231310739.

The spelling of 16217933 in words is "sixteen million, two hundred seventeen thousand, nine hundred thirty-three".