16768217 has 2 divisors, whose sum is σ = 16768218. Its totient is φ = 16768216.

The previous prime is 16768211. The next prime is 16768231. The reversal of 16768217 is 71286761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 3671056 = 3619^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 16768217 - 2⁴ = 16768201 is a prime.

It is not a weakly prime, because it can be changed into another prime (16768211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8384108 + 8384109.

It is an arithmetic number, because the mean of its divisors is an integer number (8384109).

Almost surely, 2^16768217 is an apocalyptic number.

It is an amenable number.

16768217 is a deficient number, since it is larger than the sum of its proper divisors (1).

16768217 is an equidigital number, since it uses as much as digits as its factorization.

16768217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 16768217 is about 4094.9013419129. The cubic root of 16768217 is about 255.9542205330.

The spelling of 16768217 in words is "sixteen million, seven hundred sixty-eight thousand, two hundred seventeen".