16989199 has 2 divisors, whose sum is σ = 16989200. Its totient is φ = 16989198.

The previous prime is 16989163. The next prime is 16989229. The reversal of 16989199 is 99198961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16989199 - 2¹⁵ = 16956431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16989149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8494599 + 8494600.

It is an arithmetic number, because the mean of its divisors is an integer number (8494600).

Almost surely, 2^16989199 is an apocalyptic number.

16989199 is a deficient number, since it is larger than the sum of its proper divisors (1).

16989199 is an equidigital number, since it uses as much as digits as its factorization.

16989199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 52.

The square root of 16989199 is about 4121.7956038600. The cubic root of 16989199 is about 257.0736918182.

The spelling of 16989199 in words is "sixteen million, nine hundred eighty-nine thousand, one hundred ninety-nine".