16711813 has 2 divisors, whose sum is σ = 16711814. Its totient is φ = 16711812.

The previous prime is 16711789. The next prime is 16711819. The reversal of 16711813 is 31811761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9941409 + 6770404 = 3153^2 + 2602^2 .

It is an emirp because it is prime and its reverse (31811761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16711813 - 2⁹ = 16711301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16711819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8355906 + 8355907.

It is an arithmetic number, because the mean of its divisors is an integer number (8355907).

Almost surely, 2^16711813 is an apocalyptic number.

It is an amenable number.

16711813 is a deficient number, since it is larger than the sum of its proper divisors (1).

16711813 is an equidigital number, since it uses as much as digits as its factorization.

16711813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 28.

The square root of 16711813 is about 4088.0084393259. The cubic root of 16711813 is about 255.6669099331. Note that the first 3 decimals are identical.

The spelling of 16711813 in words is "sixteen million, seven hundred eleven thousand, eight hundred thirteen".