16698893 has 2 divisors, whose sum is σ = 16698894. Its totient is φ = 16698892.

The previous prime is 16698889. The next prime is 16698901. The reversal of 16698893 is 39889661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16540489 + 158404 = 4067^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 16698893 - 2² = 16698889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16698833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349446 + 8349447.

It is an arithmetic number, because the mean of its divisors is an integer number (8349447).

Almost surely, 2^16698893 is an apocalyptic number.

It is an amenable number.

16698893 is a deficient number, since it is larger than the sum of its proper divisors (1).

16698893 is an equidigital number, since it uses as much as digits as its factorization.

16698893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The square root of 16698893 is about 4086.4279022148. The cubic root of 16698893 is about 255.6010070877.

The spelling of 16698893 in words is "sixteen million, six hundred ninety-eight thousand, eight hundred ninety-three".