36109789 has 2 divisors, whose sum is σ = 36109790. Its totient is φ = 36109788.

The previous prime is 36109781. The next prime is 36109811. The reversal of 36109789 is 98790163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 6461764 = 5445^2 + 2542^2 .

It is an emirp because it is prime and its reverse (98790163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36109789 - 2³ = 36109781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36109781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18054894 + 18054895.

It is an arithmetic number, because the mean of its divisors is an integer number (18054895).

Almost surely, 2^36109789 is an apocalyptic number.

It is an amenable number.

36109789 is a deficient number, since it is larger than the sum of its proper divisors (1).

36109789 is an equidigital number, since it uses as much as digits as its factorization.

36109789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 36109789 is about 6009.1421184725. The cubic root of 36109789 is about 330.5280465502.

The spelling of 36109789 in words is "thirty-six million, one hundred nine thousand, seven hundred eighty-nine".