16953817 has 2 divisors, whose sum is σ = 16953818. Its totient is φ = 16953816.

The previous prime is 16953803. The next prime is 16953821. The reversal of 16953817 is 71835961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 502681 = 4056^2 + 709^2 .

It is an emirp because it is prime and its reverse (71835961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16953817 - 2⁷ = 16953689 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16953817.

It is not a weakly prime, because it can be changed into another prime (16953847) 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, 8476908 + 8476909.

It is an arithmetic number, because the mean of its divisors is an integer number (8476909).

Almost surely, 2^16953817 is an apocalyptic number.

It is an amenable number.

16953817 is a deficient number, since it is larger than the sum of its proper divisors (1).

16953817 is an equidigital number, since it uses as much as digits as its factorization.

16953817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 16953817 is about 4117.5013054036. The cubic root of 16953817 is about 256.8951057447.

The spelling of 16953817 in words is "sixteen million, nine hundred fifty-three thousand, eight hundred seventeen".