16985233 has 2 divisors, whose sum is σ = 16985234. Its totient is φ = 16985232.

The previous prime is 16985209. The next prime is 16985249. The reversal of 16985233 is 33258961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 1868689 = 3888^2 + 1367^2 .

It is an emirp because it is prime and its reverse (33258961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16985233 - 2¹⁷ = 16854161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16985192 and 16985201.

It is not a weakly prime, because it can be changed into another prime (16985263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8492616 + 8492617.

It is an arithmetic number, because the mean of its divisors is an integer number (8492617).

Almost surely, 2^16985233 is an apocalyptic number.

It is an amenable number.

16985233 is a deficient number, since it is larger than the sum of its proper divisors (1).

16985233 is an equidigital number, since it uses as much as digits as its factorization.

16985233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 16985233 is about 4121.3144747762. The cubic root of 16985233 is about 257.0536862918.

The spelling of 16985233 in words is "sixteen million, nine hundred eighty-five thousand, two hundred thirty-three".