16866097 has 2 divisors, whose sum is σ = 16866098. Its totient is φ = 16866096.

The previous prime is 16866067. The next prime is 16866103. The reversal of 16866097 is 79066861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11029041 + 5837056 = 3321^2 + 2416^2 .

It is a cyclic number.

It is not a de Polignac number, because 16866097 - 2¹¹ = 16864049 is a prime.

It is not a weakly prime, because it can be changed into another prime (16866067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8433048 + 8433049.

It is an arithmetic number, because the mean of its divisors is an integer number (8433049).

Almost surely, 2^16866097 is an apocalyptic number.

It is an amenable number.

16866097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16866097 is an equidigital number, since it uses as much as digits as its factorization.

16866097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 16866097 is about 4106.8353996721. The cubic root of 16866097 is about 256.4512761676.

The spelling of 16866097 in words is "sixteen million, eight hundred sixty-six thousand, ninety-seven".