106673209 has 2 divisors, whose sum is σ = 106673210. Its totient is φ = 106673208.

The previous prime is 106673173. The next prime is 106673213. The reversal of 106673209 is 902376601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106667584 + 5625 = 10328^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 106673209 - 2⁹ = 106672697 is a prime.

It is a super-2 number, since 2×106673209² = 22758347036715362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106673909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53336604 + 53336605.

It is an arithmetic number, because the mean of its divisors is an integer number (53336605).

Almost surely, 2^106673209 is an apocalyptic number.

It is an amenable number.

106673209 is a deficient number, since it is larger than the sum of its proper divisors (1).

106673209 is an equidigital number, since it uses as much as digits as its factorization.

106673209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 106673209 is about 10328.2723143806. The cubic root of 106673209 is about 474.2621363928.

The spelling of 106673209 in words is "one hundred six million, six hundred seventy-three thousand, two hundred nine".