16897913 has 2 divisors, whose sum is σ = 16897914. Its totient is φ = 16897912.

The previous prime is 16897901. The next prime is 16897963. The reversal of 16897913 is 31979861.

16897913 is nontrivially palindromic in base 12.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 1507984 = 3923^2 + 1228^2 .

It is an emirp because it is prime and its reverse (31979861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16897913 - 2¹⁰ = 16896889 is a prime.

It is not a weakly prime, because it can be changed into another prime (16897963) 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, 8448956 + 8448957.

It is an arithmetic number, because the mean of its divisors is an integer number (8448957).

Almost surely, 2^16897913 is an apocalyptic number.

It is an amenable number.

16897913 is a deficient number, since it is larger than the sum of its proper divisors (1).

16897913 is an equidigital number, since it uses as much as digits as its factorization.

16897913 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 16897913 is about 4110.7071167866. The cubic root of 16897913 is about 256.6124303984.

The spelling of 16897913 in words is "sixteen million, eight hundred ninety-seven thousand, nine hundred thirteen".