850044109 has 2 divisors, whose sum is σ = 850044110. Its totient is φ = 850044108.

The previous prime is 850044067. The next prime is 850044119. The reversal of 850044109 is 901440058.

It is a happy number.

850044109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 794958025 + 55086084 = 28195^2 + 7422^2 .

It is a cyclic number.

It is not a de Polignac number, because 850044109 - 2²⁷ = 715826381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850044119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425022054 + 425022055.

It is an arithmetic number, because the mean of its divisors is an integer number (425022055).

Almost surely, 2^850044109 is an apocalyptic number.

It is an amenable number.

850044109 is a deficient number, since it is larger than the sum of its proper divisors (1).

850044109 is an equidigital number, since it uses as much as digits as its factorization.

850044109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 850044109 is about 29155.5159275222. The cubic root of 850044109 is about 947.2846224141.

The spelling of 850044109 in words is "eight hundred fifty million, forty-four thousand, one hundred nine".