16899317 has 2 divisors, whose sum is σ = 16899318. Its totient is φ = 16899316.

The previous prime is 16899299. The next prime is 16899331. The reversal of 16899317 is 71399861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13608721 + 3290596 = 3689^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 16899317 - 2¹⁰ = 16898293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16899347) 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 as a sum of consecutive naturals, namely, 8449658 + 8449659.

It is an arithmetic number, because the mean of its divisors is an integer number (8449659).

Almost surely, 2^16899317 is an apocalyptic number.

It is an amenable number.

16899317 is a deficient number, since it is larger than the sum of its proper divisors (1).

16899317 is an equidigital number, since it uses as much as digits as its factorization.

16899317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 16899317 is about 4110.8778867780. The cubic root of 16899317 is about 256.6195372696.

The spelling of 16899317 in words is "sixteen million, eight hundred ninety-nine thousand, three hundred seventeen".