109065779 has 4 divisors (see below), whose sum is σ = 109104600. Its totient is φ = 109026960.

The previous prime is 109065739. The next prime is 109065787. The reversal of 109065779 is 977560901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977560901 = 577 ⋅1694213.

It is a cyclic number.

It is not a de Polignac number, because 109065779 - 2¹² = 109061683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109065739) 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 in 3 ways as a sum of consecutive naturals, for example, 14837 + ... + 20934.

It is an arithmetic number, because the mean of its divisors is an integer number (27276150).

Almost surely, 2^109065779 is an apocalyptic number.

109065779 is a deficient number, since it is larger than the sum of its proper divisors (38821).

109065779 is an equidigital number, since it uses as much as digits as its factorization.

109065779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38820.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 109065779 is about 10443.4562765399. The cubic root of 109065779 is about 477.7816895519.

The spelling of 109065779 in words is "one hundred nine million, sixty-five thousand, seven hundred seventy-nine".