106809799 has 2 divisors, whose sum is σ = 106809800. Its totient is φ = 106809798.

The previous prime is 106809779. The next prime is 106809847. The reversal of 106809799 is 997908601.

It is a weak prime.

It is an emirp because it is prime and its reverse (997908601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106809799 - 2¹¹ = 106807751 is a prime.

It is a super-2 number, since 2×106809799² = 22816666324840802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106809739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53404899 + 53404900.

It is an arithmetic number, because the mean of its divisors is an integer number (53404900).

Almost surely, 2^106809799 is an apocalyptic number.

106809799 is a deficient number, since it is larger than the sum of its proper divisors (1).

106809799 is an equidigital number, since it uses as much as digits as its factorization.

106809799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 106809799 is about 10334.8826311671. The cubic root of 106809799 is about 474.4644734696.

The spelling of 106809799 in words is "one hundred six million, eight hundred nine thousand, seven hundred ninety-nine".